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The US trademark SIGMA was filed as Word mark on 11/15/1991 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 07/12/1994.
The current status of the mark is "CANCELLED - SECTION 8".
| Trademark form | Word mark |
| File reference | 74221684 |
| Register number | 1845046 |
| Application date | November 15, 1991 |
| Publication date | September 7, 1993 |
| Entry date | July 12, 1994 |
Trademark owner
P.O. BOX 9017
N2G 4X1 KITCHENER, ONTARIO
CA
N2G 4X1 KITCHENER, ONTARIO
CA
Trademark representatives
goods and services
9
instruments; namely, a hand-held programmer for setting the parameters of hearing aids, and a kit consisting of computer programs, cables, and an interface operable with a microcomputer for setting the parameters of hearing aids
ID: 1374221684