![](/us.svg)
Trademark: 73276433
Status Date
Tuesday, February 28, 1989
Registration Number
1199402
Registration Date
Tuesday, June 29, 1982
Filing Date
Tuesday, September 2, 1980
Published for Opposition
Tuesday, April 6, 1982
Cancellation Date
Tuesday, February 28, 1989
9 Combination High-Pass and Low-Pass Audio Filters Attached to a Source of Monaural Sound or to a Source of Stereo Sound to Convert the Sound from Monaural to Stereo Sound or from Stereo Sound to Quadriphonic Sound
Feb 28, 1989
Cancelled Sec. 8 (6-Yr)
Jun 29, 1982
Registered-Principal Register
Apr 6, 1982
Published For Opposition
Trademark Alertz updated from USPTO on 2030-01-24