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The US trademark PROM-BLOCK was filed as Word mark on 10/02/1972 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 03/25/1975.
The current status of the mark is "EXPIRED".
| Trademark form | Word mark |
| File reference | 72437376 |
| Register number | 1007597 |
| Application date | October 2, 1972 |
| Entry date | March 25, 1975 |
Trademark owner
7250 WYNNWOOD
77008 HOUSTON
US
77008 HOUSTON
US
goods and services
9
READ ONLY MEMORY DEVICE
ID: 1372437376