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The US trademark DUO-BLOC was filed as Word mark on 10/20/1983 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 12/11/1984.
The current status of the mark is "CANCELLED - SECTION 8".
| Trademark form | Word mark |
| File reference | 73448880 |
| Register number | 1308640 |
| Application date | October 20, 1983 |
| Publication date | October 2, 1984 |
| Entry date | December 11, 1984 |
Trademark owner
35 GREEN ST. PO BOX 653
021480005 MALDEN
US
021480005 MALDEN
US
Trademark representatives
goods and services
7
Pneumatically Operated Plastic Ball Valves
9
Electrically Operated Plastic Ball Valves
20
Manually Operated Plastic Ball Valves
ID: 1373448880