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Federal regulations · Through 2026-08-25 · Newer source version available

37 CFR 1.109: Effective filing date of a claimed invention under the Leahy-Smith America Invents Act.

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Where this section sits in the code
  1. Title 37—Patents, Trademarks, and Copyrights
  2. CHAPTER I—UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE
  3. SUBCHAPTER A—GENERAL
  4. PART 1—RULES OF PRACTICE IN PATENT CASES
  5. Subpart B—National Processing Provisions

(a) The effective filing date for a claimed invention in a patent or application for patent, other than in a reissue application or reissued patent, is the earliest of:

(1) The actual filing date of the patent or the application for the patent containing a claim to the invention; or

(2) The filing date of the earliest application for which the patent or application is entitled, as to such invention, to a right of priority or the benefit of an earlier filing date under 35 U.S.C. 119, 120, 121, 365, or 386.

(b) The effective filing date for a claimed invention in a reissue application or a reissued patent is determined by deeming the claim to the invention to have been contained in the patent for which reissue was sought.

Collected 2026-08-27T02:25:45Z. Source file · JSON

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