U.S. federal trademark · Serial No. 75204960 · Reg. No. 2357912
audio equipment, namely, speaker systems, headphone systems, and recording apparatus, comprising amplifiers, filters, cross-talk cancelers, and/or microchips containing circuits for processing audio signals, and/or computer programs for processing audio signals for producing three-dimensional stereo sound
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.