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|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | Filed                Pursuant to Rule 424(b)(3)                                                                                     |   |
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|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | Registration                No. 333-124310                                                                                          |   |
| PRICING                SUPPLEMENT NO. 422                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                                |
| Dated                November 20, 2007 to                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                                |
| PROSPECTUS                SUPPLEMENT                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |                                                                                                                                |
| Dated                June 8, 2005 and                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |                                                                                                                                |   |
| PROSPECTUS                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |                                                                                                                                |   |
| Dated                May 13, 2005                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |                                                                                                                                |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |                                                                                                                                |   |
| CATERPILLAR                FINANCIAL SERVICES CORPORATION                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                                |
| MEDIUM-TERM                NOTES, SERIES F, FLOATING RATE NOTES DUE 2008                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |                                                                                                                                |   |
| **SUBJECT**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           | **FINAL                PRICING DETAILS**                                                                                            |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |                                                                                                                                |   |
| Issuer:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | Caterpillar                Financial Services Corporation                                                                           |   |
| Title                of Securities:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | Medium-Term                Notes, Series F, Floating Rate Notes Due 2008                                                            |
| Form                of Security:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | Global                Note                                                                                                          |   |
| Ratings:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | A2/A                                                                                                                                |   |
| Format:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | SEC                Registered-Registration Statement Number 333-124310                                                              |
| Trade                Date/Pricing Effective Time:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | November                20, 2007                                                                                                    |   |
| Settlement                Date (Original Issue date):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | November                27, 2007                                                                                                    |   |
| Maturity                Date:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | November                26, 2008                                                                                                    |   |
| Principal                Amount:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | $400,000,000                                                                                                                        |   |
| Price                to Public (Issue Price):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | 100.00%                                                                                                                             |   |
| Dealers'                Commission:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | 00.05%                (5 basis points)                                                                                              |   |
| All-in-price:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | 99.950%                                                                                                                             |   |
| Net                Proceeds to Issuer:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | $399,800,000                                                                                                                        |   |
| Interest                Rate Basis (Benchmark):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | 3                Month USD LIBOR, as determined by LIBOR Telerate                                                                   |
| Index                Currency:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | U.S.                Dollars                                                                                                         |   |
| Spread                (Plus or Minus):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | +                12 basis points (0.12%)                                                                                            |   |
| Spread                Multiplier:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | N/A                                                                                                                                 |   |
| Spread/Spread                Multiplier Reset Option:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | N/A                                                                                                                                 |   |
| Optional                Reset Dates (only applicable if option to reset spread or spread                multiplier):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | N/A                                                                                                                                 |   |
| Basis                for Interest Rate Reset (only applicable if option to reset spread                or                spread multiplier):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | N/A                                                                                                                                 |   |
| Index                Maturity:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | Three                Months                                                                                                         |   |
| Interest                Rate Calculation:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | USD                LIBOR determined on Interest Determination Date plus the                Spread                                   |
| Specified                Currency:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | U.S.                Dollars                                                                                                         |   |
| Option                to Elect Payment in U.S. Dollars  (only applicable if Specified                Currency is other than U.S. Dollars):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | N/A                                                                                                                                 |   |
| Authorized                Denominations (only applicable if Specified Currency is other than                U.S.                Dollars):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | N/A                                                                                                                                 |   |
| Historical                Exchange Rate (only applicable if Specified Currency is other than                U.S.                Dollars):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | N/A                                                                                                                                 |   |
| Initial                Interest Rate:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | To                be determined two (2) London Business Days prior to the Original                Issue                Date         |
| Maximum                Interest Rate:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | N/A                                                                                                                                 |   |
| Minimum                Interest Rate:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | N/A                                                                                                                                 |   |
| Interest                Reset Periods and Dates:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | Quarterly                on the 26th of each February, May, August and November of each year                prior                   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | to                the Maturity Date, subject to Modified Following Business Day                convention                           |
| Interest                Determination Dates:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | Quarterly,                two London Business Days prior to each Interest Reset                Date                                 |
| Interest                Payment Dates:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | Interest                will be paid quarterly on the 26th of each February, May, August                and                November |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | of                each year, commencing February 26, 2008 and ending on the Maturity                Date                            |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |                                                                                                                                |   |
| Stated                Maturity Extension Option:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | N/A                                                                                                                                 |   |
| Extension                Period(s) and Final Maturity Date (only applicable if option to extend                stated maturity):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | N/A                                                                                                                                 |   |
| Basis                for Interest Rate During Extension Period (only applicable if option                to                extend stated maturity):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | N/A                                                                                                                                 |   |
| Original                Issue Discount Note:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | N/A                                                                                                                                 |   |
| Total                Amount of OID:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | N/A                                                                                                                                 |   |
| Terms                of Amortizing Notes:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | N/A                                                                                                                                 |   |
| Redemption                Date(s):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | N/A                                                                                                                                 |   |
| Redemption                Price:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | N/A                                                                                                                                 |   |
| Repayment                Date(s):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | N/A                                                                                                                                 |   |
| Repayment                Price(s):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | N/A                                                                                                                                 |   |
| Day                Count Convention:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | Actual/360                                                                                                                          |   |
| Denominations:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | Minimum                denominations of $1,000 with increments of $1,000                thereafter                                  |
| Bookrunners:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | JP                Morgan (100%)                                                                                                     |   |
| Exchange                Rate Agent:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | U.S.                Bank Trust National Association                                                                                 |   |
| Calculation                Agent:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | U.S.                Bank Trust National Association                                                                                 |   |
| CUSIP:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | 14912L3M1                                                                                                                           |   |
| Other                Terms:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           | N/A                                                                                                                                 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |                                                                                                                                |   |
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|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |                                                                                                                                |   |
| **CAPITALIZED                TERMS USED HEREIN WHICH ARE DEFINED IN THE PROSPECTUS SUPPLEMENT                SHALL                HAVE THE MEANINGS ASCRIBED THERETO IN THE PROPSECTUS SUPPLEMENT.                THE                INTEREST RATES ON THE NOTES MAY BE CHANGED BY CATERPILLAR FINANCIAL                SERVICES CORPORATION FROM TIME TO TIME, BUT ANY SUCH CHANGE WILL                NOT                AFFECT THE INTEREST RATE ON ANY NOTES OFFERED PRIOR TO THE EFFECTIVE                DATE                OF THE CHANGE. AFTER THE ISSUANCE OF THE NOTES COVERED BY THIS PRICING                SUPPLEMENT, $2,550 MM PRINCIPAL AMOUNT OF NOTES REMAIN AVAILABLE                FOR SALE                PURSUANT TO THE ACCOMPANYING PROSPECTUS                SUPPLEMENT.** |

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