Records Move of U.S. Patent and Trademark Office Records (RG 241)
Effective April 24, 2023, 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 |
|---|---|---|
|
Reissue Patent Case Files |
123.984 |
|
|
Case Files for Unregistered Product Labels |
2.016 |
|
|
Trademark Opposition Case Files |
625.308 |
|
|
Additional Improvement Patents |
0.438 |
|
|
Index to Extension Cases |
0.276 |
|
|
Extension Case Files |
158.256 |
|
|
Certificates of Extension of Patents |
1.095 |
|
|
Records Relating to Colored Inventors |
0.252 |
|
|
Index to Patent Assignments by Government Licensees |
159071266 |
36.366 |
| Index to Applications for Patents | 593158 | 103.958 |
Estimated Closure Date at the National Archives at College Park: April 24, 2023
Estimated Date Available to Researchers at the National Archives at Kansas City: June 9, 2023
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.