CFR›Title 9›Chapter I›Part 124 ContainsSubparts A–ECorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 PART 124—PATENT TERM RESTORATION Subparts A Subpart A—General Provisions Sections 124.1–124.2 B Subpart B—Eligibility Assistance Section 124.10 C Subpart C—Regulatory Review Period Sections 124.20–124.23 D Subpart D—Due Diligence Petitions Sections 124.30–124.33 E Subpart E—Due Diligence Hearing Sections 124.40–124.43 Authority35 U.S.C. 156; 7 CFR 2.22, 2.80, and 371.4.Source58 FR 11369, Feb. 25, 1993, unless otherwise noted. Previous 123 Part 123—Rules of Practice Governing Proceedings Under the Virus-Serum-Toxin Act Next 130 Part 130—User Fees