U.S. federal trademark · Serial No. 78255421 · Reg. No. 2879381
electronic noise level monitoring apparatus; noise management systems comprising a microphone, electronic noise level sensing circuitry, indicator lights and an audible alarm for providing an audible and visual indication of the noise level in a room; traffic lights modified to serve as noise management devices by adding electronic noise level sensors and control circuitry for activating the lights in response to measured noise levels
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.