1.491 National stage commencement and entry.
- (a) Subject to 35 U.S.C. 371(f), the national stage shall commence with the expiration of the applicable time limit under PCT Article 22(1) or (2), or under PCT Article 39(1)(a).
- (b) An international application enters the national stage when the applicant has filed the documents and fees required by 35 U.S.C. 371(c) within the period set in § 1.495.
[Added, 52 FR 20050, May 28, 1987; revised, 66 FR 45775, Aug. 30, 2001; revised, 67 FR 520, Jan. 4, 2002, effective Apr. 1, 2002]