C.F.R. » Title 37 » CHAPTER I—UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE › SUBCHAPTER A—GENERAL › PART 1—RULES OF PRACTICE IN PATENT CASES › Subpart C—International Processing Provisions

37 C.F.R. § 1.491

National stage commencement, entry, and fulfillment

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(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)(1) and (c)(2) within the period set in § 1.495.

(c) An international application fulfills the requirements of 35 U.S.C. 371 when the national stage has commenced under 35 U.S.C. 371(b) or (f) and all applicable requirements of 35 U.S.C. 371 have been satisfied.

[67 FR 523, Jan. 4, 2002, as amended at 77 FR 48823, Aug. 14, 2012]
Notes of Decisions
Cited in 2 cases (1 in the last 5 years), 2002–2024 · leading case: Nichols Inst. Diagnostics, Inc. v. Scantibodies Clinical Lab'y, Inc., 218 F. Supp. 2d 1243 (S.D. Cal. 2002).
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Nichols Inst. Diagnostics, Inc. v. Scantibodies Clinical Lab'y, Inc., 218 F. Supp. 2d 1243 (S.D. Cal. 2002). “37 C.F.R. § 1.491 (2001). The ’790 Patent is the national stage of international application number WO 96/10041.”
H. Lundbeck A/S v. United States Pat. & Trademark Off. (USPTO) (E.D. Va. 2024). “See 37 C.F.R. § 1.491 (b). Pursuant to 35 U.S.”
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