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The US trademark SIGMA was filed as Word mark on 08/13/1968 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 06/29/1971.
The current status of the mark is "EXPIRED".
| Trademark form | Word mark |
| File reference | 72305075 |
| Register number | 915664 |
| Application date | August 13, 1968 |
| Entry date | June 29, 1971 |
Trademark owner
170 PEARL ST.
02184 BOSTON
US
02184 BOSTON
US
goods and services
9
DIGITAL DATA PROCESSING SYSTEMS AND SYSTEM UNITS, INCLUDING DIGITAL COMPUTERS, MEMORY UNITS, INPUT-OUTPUT PROCESSORS, INPUT-OUTPUT DEVICES, SYSTEMS INTERFACE UNITS, AND COMMUNICATION UNITS
ID: 1372305075