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The US trademark PORTA-STAIR was filed as Word mark on 02/09/1981 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 12/29/1981.
The current status of the mark is "CANCELLED - SECTION 8".
| Trademark form | Word mark |
| File reference | 73296441 |
| Register number | 1183784 |
| Application date | February 9, 1981 |
| Publication date | October 6, 1981 |
| Entry date | December 29, 1981 |
Trademark owner
530 E. 144th Pl.
60419 Dolton
US
60419 Dolton
US
Trademark representatives
goods and services
19
Concrete Staircase
ID: 1373296441