37 CFR 3.21 - Identification of patents and patent applications.

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§ 3.21 Identification of patents and patent applications.
An assignment relating to a patent must identify the patent by the patent number. An assignment relating to a national patent application must identify the national patent application by the application number (consisting of the series code and the serial number, e.g., 07/123,456). An assignment relating to an international patent application which designates the United States of America must identify the international application by the international application number (e.g., PCT/US90/01234). If an assignment of a patent application filed under § 1.53(b) is executed concurrently with, or subsequent to, the execution of the patent application, but before the patent application is filed, it must identify the patent application by the name of each inventor and the title of the invention so that there can be no mistake as to the patent application intended. If an assignment of a provisional application under § 1.53(c) is executed before the provisional application is filed, it must identify the provisional application by the name of each inventor and the title of the invention so that there can be no mistake as to the provisional application intended.
[69 FR 29878, May 26, 2004]

Title 37 published on 2014-07-01.

The following are only the Rules published in the Federal Register after the published date of Title 37.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2015-04-02; vol. 80 # 63 - Thursday, April 2, 2015
    1. 80 FR 17918 - Changes To Implement the Hague Agreement Concerning International Registration of Industrial Designs
      GPO FDSys XML | Text
      DEPARTMENT OF COMMERCE, United States Patent and Trademark Office
      Final rule.
      Effective date: The changes in this final rule take effect on May 13, 2015. Applicability date: The changes to 37 CFR 1.32, 1.46, 1.63, 1.76, and 1.175 in this final rule apply only to patent applications filed under 35 U.S.C. 111, 363, or 385 on or after September 16, 2012. The changes to 37 CFR 1.53(b) and (c) and 1.57(a)(4) in this final rule apply only to patent applications filed under 35 U.S.C. 111 on or after December 18, 2013.
      37 CFR Parts 1, 3, 5, 11, and 41

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United States Code

Title 37 published on 2014-07-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 37 CFR Part 3 after this date.

  • 2015-04-02; vol. 80 # 63 - Thursday, April 2, 2015
    1. 80 FR 17918 - Changes To Implement the Hague Agreement Concerning International Registration of Industrial Designs
      GPO FDSys XML | Text
      DEPARTMENT OF COMMERCE, United States Patent and Trademark Office
      Final rule.
      Effective date: The changes in this final rule take effect on May 13, 2015. Applicability date: The changes to 37 CFR 1.32, 1.46, 1.63, 1.76, and 1.175 in this final rule apply only to patent applications filed under 35 U.S.C. 111, 363, or 385 on or after September 16, 2012. The changes to 37 CFR 1.53(b) and (c) and 1.57(a)(4) in this final rule apply only to patent applications filed under 35 U.S.C. 111 on or after December 18, 2013.
      37 CFR Parts 1, 3, 5, 11, and 41