CLOSED CIRCUIT Logo (USPTO, 04/21/1948)
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The US trademark CLOSED CIRCUIT was filed as Word and figurative mark on 04/21/1948 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 04/19/1949.
The current status of the mark is "EXPIRED".
Trademark form | Word and figurative mark |
File reference | 71555145 |
Register number | 508835 |
Application date | April 21, 1948 |
Entry date | April 19, 1949 |
ID: 1371555145