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The US trademark PO-SAN was filed as Word mark on 08/07/1969 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 08/03/1971.
The current status of the mark is "EXPIRED".
| Trademark form | Word mark |
| File reference | 72334735 |
| Register number | 917480 |
| Application date | August 7, 1969 |
| Entry date | August 3, 1971 |
goods and services
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PLANT GROWTH REGULATOR
ID: 1372334735