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The US trademark PORTERSITE was filed as Word mark on 03/16/1964 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 12/15/1964.
The current status of the mark is "EXPIRED".
| Trademark form | Word mark |
| File reference | 72188793 |
| Register number | 781618 |
| Application date | March 16, 1964 |
| Entry date | December 15, 1964 |
Trademark owner
601 GRANT ST.
PITTSBURGH
US
PITTSBURGH
US
goods and services
19
WOVEN AMOSITE SLIVERS
ID: 1372188793