USPTOProtect this trademark from copycats!
With our trademark monitoring alerts, you are automatically notified by email about copycats and free riders.
The US trademark PHD was filed as Word mark on 06/10/1991 at the U.S. Patent and Trademark Office. The current status of the mark is "ABANDONED-FAILURE TO RESPOND OR LATE RESPONSE".
| Trademark form | Word mark |
| File reference | 74174080 |
| Application date | June 10, 1991 |
Trademark owner
Trademark representatives
goods and services
42
seismic data processing services
ID: 1374174080