Trademark Overview
On Thursday, August 3, 1961, a trademark application was filed for SONOTONE WISP with the United States Patent and Trademark Office. The USPTO has given the SONOTONE WISP trademark a serial number of 72125331. The federal status of this trademark filing is EXPIRED as of Thursday, August 20, 1987. This trademark is owned by SONOTONE CORPORATION. The SONOTONE WISP trademark is filed in the Medical Instrument Products category with the following description:
HEARING AIDS AND PARTS THEREOF