Serial #74377525 Trademark
Serial Number: 74377525 • Registration: 1810620
Trademark Classes
Owner Contact Info
Trademark Details
Filing Date
April 12, 1993
Registration Date
December 14, 1993
First Use Anywhere
June 30, 1992
First Use in Commerce
November 15, 1992
Published for Opposition
September 21, 1993
Cancellation Date
September 18, 2004
Goods & Services
headphone amplifier and signal processing circuits for headphones