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The US trademark DUO-SET was filed as Word mark on 04/29/1958 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 05/26/1959.
The current status of the mark is "EXPIRED".
| Trademark form | Word mark |
| File reference | 72050599 |
| Register number | 679247 |
| Application date | April 29, 1958 |
| Entry date | May 26, 1959 |
Trademark owner
King of Prussia
US
goods and services
9
Repeat Cycle Timer with Two Separate Independently Settable Load Circuits
ID: 1372050599