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The US trademark DIF was filed as Word mark on 03/20/1996 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 02/11/1997.
The current status of the mark is "REGISTERED AND RENEWED".
| Trademark form | Word mark |
| File reference | 75085435 |
| Register number | 2037268 |
| Application date | March 20, 1996 |
| Publication date | November 19, 1996 |
| Entry date | February 11, 1997 |
Trademark owner
P.O. Box 4740
772104740 Houston
US
772104740 Houston
US
Trademark representatives
goods and services
1
chemical compositions, namely additives for use in drilling and completions; completion fluids; drilling muds; drilling fluids; dispersants and emulsifiers in the drilling, completion and workover of subterranean oil and gas wells
ID: 1375085435