USPTOProtect this trademark from copycats!
With our trademark monitoring alerts, you are automatically notified by email about copycats and free riders.
The US trademark DUO-SAYED was filed as Word mark on 12/22/1944 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 06/26/1945.
The current status of the mark is "EXPIRED".
| Trademark form | Word mark |
| File reference | 71477849 |
| Register number | 414775 |
| Application date | December 22, 1944 |
| Entry date | June 26, 1945 |
Trademark owner
PHILADELPHIA, PA.
goods and services
5
TABLETS NITROGLYCERIN AND TABLETS THYROID, USEFUL IN THE TREATMENT RESPECTIVELY OF ANGINA ATTACKS AND METABOLIC DISTURBANCES
ID: 1371477849