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The US trademark PERX was filed as Word mark on 03/13/1961 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 07/31/1962.
The current status of the mark is "EXPIRED".
| Trademark form | Word mark |
| File reference | 72115445 |
| Register number | 735099 |
| Application date | March 13, 1961 |
| Entry date | July 31, 1962 |
Trademark owner
P.O. BOX 1421
WILLISTON
US
WILLISTON
US
goods and services
1
SALT USED AS AN ADDITIVE IN OIL WELL DRILLING
ID: 1372115445