USPTOProtect this trademark from copycats!
With our trademark monitoring alerts, you are automatically notified by email about copycats and free riders.
The US trademark SPIRULE was filed as Word mark on 04/13/1962 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 12/18/1962.
The current status of the mark is "EXPIRED".
| Trademark form | Word mark |
| File reference | 72142225 |
| Register number | 742342 |
| Application date | April 13, 1962 |
| Entry date | December 18, 1962 |
Trademark owner
9728 EL VENADO DRIVE WHITTIER, CALIF.
goods and services
9
CALCULATING DEVICE KNOWN AS THE ROOT LOCUS PLOTTER
ID: 1372142225