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The US trademark OPCOLIG was filed as Word mark on 08/17/1973 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 09/24/1974.
The current status of the mark is "EXPIRED".
| Trademark form | Word mark |
| File reference | 72465949 |
| Register number | 993557 |
| Application date | August 17, 1973 |
| Entry date | September 24, 1974 |
Trademark owner
THOROLD, ONTARIO
CA
goods and services
1
LIGNOSULPHONIC ACID COMPOUNDS AND PARTIALLY OR SUBSTANTIALLY DESULPHONATED DERIVATIVES OR MODIFICATIONS OF THE SAME, INCLUDING COMPOSITIONS OF MATTER CONTAINING A SUBSTANTIAL PROPORTION OF THE ABOVE MATERIALS FOR USE IN THE FIELDS OF DISPERSANTS, EMULSIFIERS, DEFLOCCULANTS, FLOTATION AGENTS, EXTENDERS, GRINDING AIDS, DRILLING MUDS AND ADHESIVES
ID: 1372465949