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The US trademark SUM DIFFERENCE was filed as Word mark on 06/15/1979 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 02/17/1981.
The current status of the mark is "CANCELLED - SECTION 8".
Trademark form | Word mark |
File reference | 73219842 |
Register number | 1147261 |
Application date | June 15, 1979 |
Publication date | November 4, 1980 |
Entry date | February 17, 1981 |
ID: 1373219842