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The US trademark SPHER-O-DYNE was filed as Word mark on 02/04/1966 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 04/04/1967.
The current status of the mark is "EXPIRED".
| Trademark form | Word mark |
| File reference | 72238120 |
| Register number | 826805 |
| Application date | February 4, 1966 |
| Entry date | April 4, 1967 |
Trademark owner
222 HARTREY AVE. EVANSTON, ILL.
goods and services
9
MICROPHONES
ID: 1372238120