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The US trademark D-O was filed as Word mark on 06/29/1956 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 04/16/1957.
The current status of the mark is "EXPIRED".
| Trademark form | Word mark |
| File reference | 72011236 |
| Register number | 644166 |
| Application date | June 29, 1956 |
| Entry date | April 16, 1957 |
Trademark owner
BARRY PLACE
STAMFORD
US
STAMFORD
US
goods and services
7
APPARATUS FOR DISPERSING GASE INTO LIQUIDS
ID: 1372011236