U.S. federal trademark · Serial No. 85570432 · Reg. No. 4319110
A feature of two-way audio equipment, namely, a combination headset and microphone with the capability to enable and disable the microphone audio pickup as a function of the relative position of the microphone to the headset and to the user's face
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.