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The US trademark DUOVIS was filed as Word mark on 10/30/1986 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 01/12/1988.
The current status of the mark is "CANCELLED - SECTION 8".
| Trademark form | Word mark |
| File reference | 73629047 |
| Register number | 1471829 |
| Application date | October 30, 1986 |
| Publication date | October 20, 1987 |
| Entry date | January 12, 1988 |
Trademark owner
1600 PACIFIC AVENUE
75201 DALLAS
US
75201 DALLAS
US
Trademark representatives
goods and services
1
CHEMICAL ADDITIVE FOR DRILLING FLUIDS
ID: 1373629047