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The US trademark DC-DIAPHRAGM was filed as Word mark on 10/13/2004 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 11/07/2006.
The current status of the mark is "CANCELLED - SECTION 8".
| Trademark form | Word mark |
| File reference | 76615723 |
| Register number | 3169213 |
| Application date | October 13, 2004 |
| Publication date | March 14, 2006 |
| Entry date | November 7, 2006 |
Trademark owner
Hamamatsu-shi
Shizuoka
JP
Shizuoka
JP
Trademark representatives
goods and services
9
Loudspeakers; tweeters; woofers; sub-woofers; headphones; mini audio systems comprised of amplifiers, loudspeakers, and optical disk players; [ optical disc players; ] loudspeakers for cars
ID: 1376615723