35 U.S.C. 21 — Filing date and day for taking action
Ninth Edition, Revision 01.2024
- (a) The Director may by rule prescribe that any paper or fee required to be filed in the Patent and Trademark Office will be considered filed in the Office on the date on which it was deposited with the United States Postal Service or would have been deposited with the United States Postal Service but for postal service interruptions or emergencies designated by the Director.
- (b) When the day, or the last day, for taking any action or paying any fee in the United States Patent and Trademark Office falls on Saturday, Sunday, or a Federal holiday within the District of Columbia, the action may be taken, or fee paid, on the next succeeding secular or business day.
(Amended Jan. 2, 1975, Public Law 93-596, sec. 1, 88 Stat. 1949; Aug. 27, 1982, Public Law 97-247, sec. 12, 96 Stat. 321; Nov. 29, 1999, Public Law 106-113, sec. 1000(a)(9), 113 Stat. 1501A-582 (S. 1948 sec. 4732(a)(10)(A)).)
Cited by
- 1124 Notice of Foreign Filing
- 1216 Judicial Review
- 1481.03 Correction of 35 U.S.C. 119 and 35 U.S.C. 120 Benefits
- 1805 Where To File an International Application
- 210 Priority to, or the Benefit of, the Filing Date of a Prior-Filed Application
- 211 Claiming the Benefit of an Earlier Filing Date Under 35 U.S.C. 120 and 119(e)
- 211.01(a) Claiming the Benefit of a Provisional Application
- 213 Right of Priority of Foreign Application
- 213.03 Time for Filing U.S. Nonprovisional Application
- 2133 Pre-AIA 35 U.S.C. 102(b)
- 2139.02 Determining Whether To Apply Pre-AIA 35 U.S.C. 102(a), (b), or (e)
- 2151 Overview of the Changes to 35 U.S.C. 102 and 103 in the AIA
- 2153.01(a) Grace Period Inventor-Originated Disclosure Exception
- 2153.02 Prior Art Exception Under AIA 35 U.S.C. 102(b)(1)(B) to AIA 35 U.S.C. 102(a)(1) (Inventor-Originated Prior Public Disclosure Exception)
- 2506 Times for Submitting Maintenance Fee Payments
- 2734 Application for Patent Term Adjustment; Due Care Showing
- 2920.05(d) Foreign Priority
- 2920.05(e) Benefit Claims Under 35 U.S.C. 386(c)
- 502.05 Correspondence Transmitted by EFS-Web
- 510 U.S. Patent and Trademark Office Business Hours
- 511 Postal Service Interruptions and Emergencies
- 513 Deposit as Priority Mail Express® with U.S. Postal Service
- 710.05 Period Ending on Saturday, Sunday, or a Federal Holiday
- 711.02 Failure To Take Required Action During Statutory Period
- 711.04(a) Date of Abandonment
- 37 CFR 1.55 Claim for foreign priority
- 37 CFR 1.78 Claiming benefit of earlier filing date and cross-references to other applications
- 37 CFR 90.3 Time for appeal or civil action