ISDN Trademark
ISDN is a USPTO trademark filed by PACIFIC TELESIS GROUP. Status: Cancelled.
Trademark Facts
| Mark | ISDN |
|---|---|
| Serial Number | 74089950 |
| Registration Number | 1740673 |
| Status | Cancelled |
| Filing Date | 1990-08-20 |
| Registration Date | 1992-12-15 |
| Mark Type | Combined |
| Nice Classes | 038 (Telecommunications) |
| Owner | PACIFIC TELESIS GROUP |
| Attorney of Record | Carol Elizabeth Frizzell |
| Prosecution Events | 17 |
| Latest Event | C8.. on 1999-06-21 |
Goods & Services
telecommunications services; "ISDN"