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The US trademark LETTER was filed as Word mark on 07/19/1965 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 05/31/1966.
The current status of the mark is "EXPIRED".
| Trademark form | Word mark |
| File reference | 72223620 |
| Register number | 809166 |
| Application date | July 19, 1965 |
| Entry date | May 31, 1966 |
Trademark owner
401 N. WABASH AVE.
CHICAGO
US
CHICAGO
US
Trademark representatives
goods and services
5
PHARMACEUTICAL TABLETS CONTAINING SODIUM LEVOTHYROXINE
ID: 1372223620