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The US trademark KEYSTONE FILTER was filed as Word mark on 05/07/2003 at the U.S. Patent and Trademark Office. The current status of the mark is "ABANDONED-FAILURE TO RESPOND OR LATE RESPONSE".
| Trademark form | Word mark |
| File reference | 76512269 |
| Application date | May 7, 2003 |
Trademark owner
3411 Silverside Road
19810 Wilmington
US
19810 Wilmington
US
Trademark representatives
goods and services
11
liquid and air filters
ID: 1376512269