35 U.S.C. § 120 (PATENTS)
§ 120. Benefit of earlier filing date in the United States
An application for patent for an invention disclosed in the manner provided by section 112(a) (other than the requirement to disclose the best mode) in an application previously filed in the United States, or as provided by section 363 or 385, which names an inventor or joint inventor in the previously filed application shall have the same effect, as to such invention, as though filed on the date of the prior application, if filed before the patenting or abandonment of or termination of proceedings on the first application or on an application similarly entitled to the benefit of the filing date of the first application and if it contains or is amended to contain a specific reference to the earlier filed application. No application shall be entitled to the benefit of an earlier filed application under this section unless an amendment containing the specific reference to the earlier filed application is submitted at such time during the pendency of the application as required by the Director. The Director may consider the failure to submit such an amendment within that time period as a waiver of any benefit under this section. The Director may establish procedures, including the requirement for payment of the fee specified in section 41(a)(7), to accept an unintentionally delayed submission of an amendment under this section.
(July 19, 1952, ch. 950, 66 Stat. 800; Pub. L. 94–131, § 9, Nov. 14, 1975, 89 Stat. 691; Pub. L. 98–622, title I, § 104(b), Nov. 8, 1984, 98 Stat. 3385; Pub. L. 106–113, div. B, § 1000(a)(9) [title IV, § 4503(b)(1)], Nov. 29, 1999, 113 Stat. 1536, 1501A–563; Pub. L. 112–29, §§ 3(f), 15(b), 20(j), Sept. 16, 2011, 125 Stat. 288, 328, 335; Pub. L. 112–211, title I, § 102(5), title II, § 202(b)(3), Dec. 18, 2012, 126 Stat. 1531, 1536.)
heading: Historical and Revision Notes
text: This section represents present law not expressed in the statute, except for the added requirement that the first application must be specifically mentioned in the second.
heading: Amendments
text: 2012—Pub. L. 112–211, § 202(b)(3), substituted “including the requirement for payment of the fee specified in section 41(a)(7)” for “including the payment of a surcharge”.
Pub. L. 112–211, § 102(5), substituted “section 363 or 385” for “section 363”.
2011—Pub. L. 112–29, § 20(j), struck out “of this title” after “363”.
Pub. L. 112–29, § 15(b), substituted “section 112(a) (other than the requirement to disclose the best mode)” for “the first paragraph of section 112 of this title”.
Pub. L. 112–29, § 3(f), substituted “which names an inventor or joint inventor” for “which is filed by an inventor or inventors named”.
1999—Pub. L. 106–113 inserted at end “No application shall be entitled to the benefit of an earlier filed application under this section unless an amendment containing the specific reference to the earlier filed application is submitted at such time during the pendency of the application as required by the Director. The Director may consider the failure to submit such an amendment within that time period as a waiver of any benefit under this section. The Director may establish procedures, including the payment of a surcharge, to accept an unintentionally delayed submission of an amendment under this section.”
1984—Pub. L. 98–622 substituted “which is filed by an inventor or inventors named in the previously filed application” for “by the same inventor”.
1975—Pub. L. 94–131 inserted “, or as provided by section 363 of this title,” after “filed in the United States”.
heading: Effective Date of 2012 Amendment
text: Amendment by section 102(5) of Pub. L. 112–211 effective on the later of the date that is 1 year after Dec. 18, 2012, or the date that the Geneva Act of the Hague Agreement Concerning the International Registration of Industrial Designs enters into force with respect to the United States (May 13, 2015), and applicable only to certain applications filed on and after that effective date and patents issuing thereon, see section 103 of Pub. L. 112–211, set out as a note under section 100 of this title.
Amendment by section 202(b)(3) of Pub. L. 112–211 effective on the date that is 1 year after Dec. 18, 2012, applicable to patents issued before, on, or after that effective date and patent applications pending on or filed after that effective date, and not effective with respect to patents in litigation commenced before that effective date, see section 203 of Pub. L. 112–211, set out as an Effective Date note under section 27 of this title.
heading: Effective Date of 2011 Amendment
text: Amendment by section 3(f) of Pub. L. 112–29 effective upon the expiration of the 18-month period beginning on Sept. 16, 2011, and applicable to certain applications for patent and any patents issuing thereon, see section 3(n) of Pub. L. 112–29, set out as an Effective Date of 2011 Amendment; Savings Provisions note under section 100 of this title.
Amendment by section 15(b) of Pub. L. 112–29 effective on Sept. 16, 2011, and applicable to proceedings commenced on or after that date, see section 15(c) of Pub. L. 112–29, set out as a note under section 119 of this title.
Amendment by section 20(j) of Pub. L. 112–29 effective upon the expiration of the 1-year period beginning on Sept. 16, 2011, and applicable to proceedings commenced on or after that effective date, see section 20(l) of Pub. L. 112–29, set out as a note under section 2 of this title.
heading: Effective Date of 1999 Amendment
text: Amendment by Pub. L. 106–113 effective Nov. 29, 2000, and applicable only to applications (including international applications designating the United States) filed on or after that date, see section 1000(a)(9) [title IV, § 4508] of Pub. L. 106–113, as amended, set out as a note under section 10 of this title.
heading: Effective Date of 1984 Amendment
text: Amendment by Pub. L. 98–622 applicable to all United States patents granted before, on, or after Nov. 8, 1984, and to all applications for United States patents pending on or filed after that date, except as otherwise provided, see section 106 of Pub. L. 98–622, set out as a note under section 103 of this title.
heading: Effective Date of 1975 Amendment
text: Amendment by Pub. L. 94–131 effective Jan. 24, 1978, and applicable on and after that date to patent applications filed in the United States and to international applications, where applicable, see section 11 of Pub. L. 94–131, set out as an Effective Date note under section 351 of this title.