42.202 Time for filing.
- (a) A petition for a post-grant review of a patent must be filed no later than the date that is nine months after the date of the grant of a patent or of the issuance of a reissue patent. A petition, however, may not request a post-grant review for a claim in a reissue patent that is identical to or narrower than a claim in the original patent from which the reissue patent was issued unless the petition is filed not later than the date that is nine months after the date of the grant of the original patent.

- (b) [Reserved]

[Applicability Note: Subpart C (Post-Grant Review) generally applies to patents issuing from applications subject to first-inventor-to-file provisions of the AIA. In addition, the Chief Administrative Patent Judge may, in the interests-of-justice, order an interference commenced before September 16, 2012 to be dismissed without prejudice to the filing of a petition for post-grant review. See § 42.200(d) and the Leahy-Smith America Invents Act, Public Law 112-29, sec. 6(f)(3)(A).] [Added, 77 FR 48680, Aug. 14, 2012, effective Sept. 16, 2012; para. (b) removed and reserved, 84 FR 51977, Oct. 1, 2019, effective Oct. 31, 2019]