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The US trademark DUOPRIN was filed as Word mark on 12/14/1965 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 05/02/1967.
The current status of the mark is "EXPIRED".
Trademark form | Word mark |
File reference | 72234547 |
Register number | 828118 |
Application date | December 14, 1965 |
Entry date | May 2, 1967 |
ID: 1372234547