U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 43Chapter IIPart 3870Subpart 3871 - Subpart 3871—Adverse Claims
§ 3871.1 - Filing of claim.
§ 3871.2 - Statement of claim.
§ 3871.3 - Action by authorized officer.
§ 3871.4 - Patent proceedings stayed when adverse claim is filed; exception.
§ 3871.5 - Termination of adverse suit.
§ 3871.6 - Certificate required when no suit commenced.
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