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The US trademark DSF was filed as Word mark on 04/03/1981 at the U.S. Patent and Trademark Office. The current status of the mark is "REGISTERED AND RENEWED".
| Trademark form | Word mark |
| File reference | 1182813 |
| Register number | 73304048 |
| Application date | April 3, 1981 |
Trademark owner
2103 Citywest Blvd.
77042 Houston
77042 Houston
goods and services
9
Electrical and scientific apparatus
ID: 13