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The US trademark DUO-CHECK was filed as Word mark on 11/29/1954 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 08/23/1955.
The current status of the mark is "EXPIRED".
Trademark form | Word mark |
File reference | 71677444 |
Register number | 610926 |
Application date | November 29, 1954 |
Entry date | August 23, 1955 |
ID: 1371677444