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The US trademark CARBO-TROL was filed as Word mark on 11/05/1968 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 10/21/1969.
The current status of the mark is "REGISTERED AND RENEWED".
| Trademark form | Word mark |
| File reference | 72311387 |
| Register number | 878978 |
| Application date | November 5, 1968 |
| Entry date | October 21, 1969 |
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DRILLING MUD ADDITIVES-NAMELY, A MIXTURE OF OIL DISPERSIBLE POLYMERS FOR FILTRATION CONTROL
ID: 1372311387