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Records Move of U.S. Patent and Trademark Office Records (RG 241)

Effective July 8, 2022, the following series from Record Group 241 (RG 241), Records of the Patent and Trademark Office will be temporarily closed to prepare for relocation to the National Archives at Kansas City. Similar records are already located in the Kansas City area. The relocation will facilitate more efficient archival research and public access to these records.

Records to be relocated are:

Series Title National Archives Identifier Cubic Footage
Transfer of Patents [""Liber Volumes""] 593148 1383.861
Index to Assignments 593144 17.52
Patent Assignment Digests [Digest of Assignments] 593129 262.143
Indexes to Assignments 593145 273.17
Index to Assignor Assignments 102260436 16.72
Design Patent Interference Case Files 23811438 7.31
Trademark Interference Case Files 563065 155.916
Design Patent Case Files 23869458 16.155
Abandoned Design Patent Applications 12058537 68.928

Estimated Closure Date at the National Archives at College Park: July 8, 2022
Estimated Date Available to Researchers at the National Archives at Kansas City: August 1, 2022

Please keep in mind that the dates listed above are an estimate. If there is a significant change to this schedule we will post it in the consultation areas at the National Archives at College Park and the National Archives at Kansas City.

You can check the status of the records by contacting the National Archives at Kansas City in one of the following ways:

E-mail: kansascity.archives@nara.gov

or

Send a letter to:
National Archives at Kansas City 
400 West Pershing Road
Kansas City, MO 64108

Please contact the National Archives at Kansas City at least two business days in advance.

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