DUO-VOLT Trademark
DUO-VOLT is a USPTO trademark filed by SIGMA INSTRUMENTS, INC.. Status: Cancelled.
Trademark Facts
| Mark | DUO-VOLT |
|---|---|
| Serial Number | 72157413 |
| Registration Number | 0752426 |
| Status | Cancelled |
| Filing Date | 1962-11-16 |
| Registration Date | 1963-07-09 |
| Mark Type | Word |
| Nice Classes | 009 (Electronics & Software), 021 (Housewares) |
| Owner | SIGMA INSTRUMENTS, INC. |
| Prosecution Events | 2 |
| Latest Event | CAEX on 2004-04-10 |
Goods & Services
Photo-Electric Light Control Switches