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43 U.S.C. 2506: Limitations of suits to annul patentsText contains those laws in effect through Public Law 119-120 (October 7, 2026).
From Title 43-PUBLIC LANDSCHAPTER 43-SUSPENDED ENTRIES AND CLAIMS; PATENTS
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§2506. Limitations of suits to annul patents

Suits by the United States to vacate and annul any patent shall only be brought within six years after the date of the issuance of such patents.

( Mar. 3, 1891, ch. 559 , 26 Stat. 1093 ; Mar. 3, 1891, ch. 561, § 8 , 26 Stat. 1099 .)

Editorial Notes

Codification

Section was formerly classified to section 1166 of this title prior to editorial reclassification and renumbering as this section.