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The US trademark CARBO-FREE was filed as Word mark on 10/07/1976 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 08/09/1977.
The current status of the mark is "EXPIRED".
| Trademark form | Word mark |
| File reference | 73102449 |
| Register number | 1070820 |
| Application date | October 7, 1976 |
| Entry date | August 9, 1977 |
Trademark owner
3920 ESSEX LANE
77027 HOUSTON
US
77027 HOUSTON
US
goods and services
1
POWDERED CONCENTRATE FOR USE IN PREPARING WEIGHTED OIL OR OIL PHASE EMULSIONS USED AS SPOTTING FLUIDS TO FREE STUCK DRILL PIPE
ID: 1373102449