U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 43Chapter IIPart 3860Subpart 3863 - Subpart 3863—Placer Mining Claim Patent Applications
§ 3863.1 - Placer mining claim patent applications: General.
§ 3863.1-1 - Application for patent.
§ 3863.1-2 - Proof of improvements for patent.
§ 3863.1-3 - Data to be filed in support of application.
§ 3863.1-4 - Applications for placers containing known lodes.
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