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The US trademark DUO-PAK was filed as Word mark on 11/21/1977 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 08/29/1978.
The current status of the mark is "EXPIRED".
| Trademark form | Word mark |
| File reference | 73149455 |
| Register number | 1100646 |
| Application date | November 21, 1977 |
| Entry date | August 29, 1978 |
Trademark owner
225 ERIE STREET
14086 LANCASTER
US
14086 LANCASTER
US
Trademark representatives
goods and services
10
PORTABLE SOLID STATE OXYGEN GENERATORS
ID: 1373149455