35 U.S. Code Chapter 2 - PROCEEDINGS IN THE PATENT AND TRADEMARK OFFICE

Sec. 21. Filing date and day for taking action. 22. Printing of papers filed. 23. Testimony in Patent and Trademark Office cases. 24. Subpoenas, witnesses. 25. Declaration in lieu of oath. 26. Effect of defective execution. 27. Revival of applications; reinstatement of reexamination proceedings.
Amendments

2012—Pub. L. 112–211, title II, § 201(b)(2),Dec. 18, 2012, 126 Stat. 1534, added item 27.
2002—Pub. L. 107–273, div. C, title III, § 13206(a)(5),Nov. 2, 2002, 116 Stat. 1904, substituted “Filing date and day for taking action” for “Day for taking action falling on Saturday, Sunday, or holiday” in item 21.
1975—Pub. L. 93–596, § 1,Jan. 2, 1975, 88 Stat. 1949, substituted “Patent and Trademark Office” for “Patent Office” in chapter heading and in item 23.
1964—Pub. L. 88–292, § 2,Mar. 26, 1964, 78 Stat. 171, added items 25 and 26.

 

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