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The US trademark GRIDSTONE was filed as Word mark on 03/27/1987 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 11/17/1987.
The current status of the mark is "SECTION 15-ACKNOWLEDGED".
Trademark form | Word mark |
File reference | 1465484 |
Register number | 73651816 |
Application date | March 27, 1987 |
Entry date | November 17, 1987 |
Expiration date | November 17, 2027 |
ID: 13