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The US trademark PDI was filed as Word mark on 05/07/1971 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 09/12/1972.
The current status of the mark is "EXPIRED".
| Trademark form | Word mark |
| File reference | 72391446 |
| Register number | 943023 |
| Application date | May 7, 1971 |
| Entry date | September 12, 1972 |
Trademark owner
205 W. WALL ST. 535345
goods and services
41
CONDUCTING SEMINARS IN SCIENTIFIC FIELDS
ID: 1372391446