35 U.S.C. 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
- § 28— Award of certificates to accelerate certain matters at the Patent and Trademark Office