Related links
37 CFR 3.28 - Requests for recording. - Law.Cornell.Edu
If a document to be recorded includes interests in, or transactions involving, both patents and trademarks, then separate patent and trademark cover sheets,
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302-Recording of Assignment Documents - USPTO
37 CFR Part 3 sets forth Office rules on recording assignments and other documents relating to interests in patent applications and patents and the rights
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U.S. Patent and Trademark Office - FOIA.Wiki
This site has agency statistics and details on records systems. U.S. Patent and Trademark Office page MuckRock. This site makes FOIA requests from its members
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