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The US trademark HARTSTONE was filed as Word mark on 12/15/1977 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 07/24/1979.
The current status of the mark is "CANCELLED - SECTION 8".
Trademark form | Word mark |
File reference | 1122813 |
Register number | 73152129 |
Application date | December 15, 1977 |
Entry date | July 24, 1979 |
Expiration date | July 24, 2019 |
ID: 13