SIGMA Trademark
SIGMA is a USPTO trademark filed by SIGMA INSTRUMENTS, INC.. Status: Expired.
Trademark Facts
| Mark | SIGMA |
|---|---|
| Serial Number | 72153221 |
| Registration Number | 0788972 |
| Status | Expired |
| Filing Date | 1962-09-14 |
| Registration Date | 1965-05-04 |
| Mark Type | Word |
| Nice Classes | 009 (Electronics & Software), 021 (Housewares), 026 (Accessories) |
| Owner | SIGMA INSTRUMENTS, INC. |
| Prosecution Events | 3 |
| Latest Event | CAEX on 2006-02-11 |
Goods & Services
ELECTRICAL TESTING AND MEASURING EQUIPMENT-NAMELY, ELECTRICAL AND MAGNETIC PICK-CK-UP EQUIPMENT FOR TESTING POWER LINES, INDICATING ELECTRICAL COUNTERS, ] RELAY TEST SETS, [ AUTOMATIC TEMPERATURE CONTROLLERS AND INDICATING AND MEASURING SYSTEMS FOR POWER LINES ]; ELECTROMECHANICAL RELAYS, REED RELAYS, ELECTROMECHANICAL MAGNETICALLY LATCHING RELAYS, [ ACOUSTICAL SWITCHES, ] STEPPING MOTORS, STEPPING MOTOR DRIVES, [ STEPPING MOTOR SWITCH COMBINATIONS, ] MAGNETIC AMPLIFIERS, PHOTO RELAYS, LIGHT SOURCES FOR PHOTO RELAYS, [ TRANSISTOR AMPLIFIERS, ] SERVO-MECHANISMS, [ TRANSFORMERS AND RECTIFIERS ASSEMBLIES ]