US Code Title 35 Chapter 2 Proceedings in the Patent and Trademark Office

§ 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

Last modified: October 26, 2015