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The US trademark DUO was filed as Word mark on 11/07/1941 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 03/17/1942.
The current status of the mark is "EXPIRED".
| Trademark form | Word mark |
| File reference | 71448454 |
| Register number | 394099 |
| Application date | November 7, 1941 |
| Entry date | March 17, 1942 |
Trademark owner
HARTFORD, CONN.
goods and services
11
SINK AND TRAY WASTES AND TRAPS AND PARTS THEREOF
ID: 1371448454