Exhibit 10.36

 

DANI

INVESTMENT

PARTNERS

 

Sept. 12, 2003

 

Bill Dippel

Vice President, Operations

Conceptus, Inc.

 

Dear Bill,

 

I have received your letter on behalf of Conceptus Inc., which is an Offer of
Lease Extension and I am in agreement with your offer of $1 Per Sq. Ft.

 

Your New Monthly Rent will be $20,000 commencing on Jan. 1, 2004 – Dec. 31,
2005.

 

I would expect the Direct Deposit Procedure to Remain as well as All Other
Agreements made in our Original Lease Dated November 14, 2000.

 

Thank you for your continued “Attention to Detail” in keeping our building so
nice.

 

Sincerely,

 

/s/ Dennis Farrey

--------------------------------------------------------------------------------

Dennis Farrey

Dani Investment Partners

 

Dated: 09/12/03

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Conceptus Inc.

 

August 26, 2003

 

Dani Investment

Dane Prenovitz

1353 Shoreway Rd.

Belmont, Ca 94002

 

Dear Dane,

 

As we discussed, Conceptus would like to exercise its 2-year option to extend
our current lease in your building at 1021 Howard Avenue, San Carlos, CA until
December 31, 2005. We would expect all other terms and conditions of the
existing lease to remain in effect except the monthly rent. In exercising this
option, we would like to offer what we believe to be fair market value of $1.00
per square foot.

 

If you are in agreement we would like to complete this transaction as soon as
possible. Please contact me at 650-9628-4700.

 

Best Regards,

 

/s/ William Dippel

--------------------------------------------------------------------------------

William Dippel

Vice President, Operations

Conceptus, Inc.