TRIO Logo (USPTO, 08/23/1956)
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The US trademark TRIO was filed as Word and figurative mark on 08/23/1956 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 07/01/1958.
The current status of the mark is "EXPIRED".
| Trademark form | Word and figurative mark |
| File reference | 72014478 |
| Register number | 663772 |
| Application date | August 23, 1956 |
| Entry date | July 1, 1958 |
Trademark owner
PLAINVIEW NY
goods and services
9
ELECTRONIC LABORATORY INSTRUMENTS-NAMELY, VACUUM TUBE VOLTMETERS AND POWER SUPPLIES THEREFOR, ELECTRONIC AUDIO FREQUENCY GENERATORS AND VACUUM TUBE AMMETERS
ID: 1372014478