37 CFR 1.109: Effective filing date of a claimed invention under the Leahy-Smith America Invents Act
Taken from the Ninth Edition of the MPEP, Revision 10.2019, Last Revised in June 2020
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1.109 Effective filing date of a claimed invention under the Leahy-Smith America Invents Act.
- (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.
[Added 78 FR 11024, Feb. 14, 2013, effective Mar. 16, 2013; revised, 80 FR 17918, Apr. 2, 2015, effective May 13, 2015]