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The US trademark DIOPTIC was filed as Word mark on 12/13/1976 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 06/05/1979.
The current status of the mark is "CANCELLED - SECTION 8".
Trademark form | Word mark |
File reference | 73109490 |
Register number | 1119535 |
Application date | December 13, 1976 |
Entry date | June 5, 1979 |
ID: 1373109490