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The US trademark KEYSTONE COAL INDUSTRY MANUAL was filed as Word mark on 08/31/1981 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 03/22/1983.
The current status of the mark is "CANCELLED - SECTION 8".
Trademark form | Word mark |
File reference | 73325788 |
Register number | 1232343 |
Application date | August 31, 1981 |
Publication date | March 22, 1983 |
Entry date | March 22, 1983 |
ID: 1373325788