U.S. federal trademark · Serial No. 88097544 · Reg. No. 6110450
Musical instrument accessories, namely, portable mutes for the alteration of timbre and volume of the voice
Educational apparatus, namely, semi-occluded vocal tract exercise devices used as a teaching aid in vocal training and music instruction
Physical exercise apparatus in the nature of semi-occluded vocal tract exercise device for strengthening and conditioning of vocal folds and vocal production musculature
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.