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The US trademark PURPALD was filed as Word mark on 03/08/1972 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 03/20/1973.
The current status of the mark is "EXPIRED".
| Trademark form | Word mark |
| File reference | 72417718 |
| Register number | 955548 |
| Application date | March 8, 1972 |
| Entry date | March 20, 1973 |
Trademark owner
1001 W. ST. PAUL AVE.
53233 MILWAUKEE
US
53233 MILWAUKEE
US
Trademark representatives
goods and services
1
4-AMINO-3-HYDRAZINO-5-MERCAPTO-1,2,4-TRIAZOLE, AN ORGANIC CHEMICAL REAGENT USED AS AN ANALYTICAL TOOL FOR THE DETECTION OF ALDEHYDES IN EXTREMELY SMALL CONCENTRATION AND IN THE PRESENCE OF SIMILAR CHEMICAL MOIETIES SUCH AS KETONES
ID: 1372417718