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The US trademark SULPHOFLAVINE was filed as Word mark on 08/15/1957 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 02/24/1959.
The current status of the mark is "EXPIRED".
| Trademark form | Word mark |
| File reference | 72035579 |
| Register number | 674384 |
| Application date | August 15, 1957 |
| Entry date | February 24, 1959 |
Trademark owner
WYANDOTTE MI
goods and services
2
DYESTUFFS
ID: 1372035579