With our trademark monitoring alerts, you are automatically notified by email about copycats and free riders.
The US trademark SIGMA was filed as Word mark on 04/08/1974 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 06/01/1976.
The current status of the mark is "EXPIRED".
Trademark form | Word mark |
File reference | 73018229 |
Register number | 1040363 |
Application date | April 8, 1974 |
Entry date | June 1, 1976 |
ID: 1373018229