U.S. federal trademark · Serial No. 74048682
non-cellular telecommunication apparatus for initiating a call through the public telephone network with a pay type phone instrument; namely, a handset unit communicating via infra-red signals with a remote, line-of-sight based unit located in a the pay type telephone instrument to transmit and receive audio information and supervisory signals between the handset unit and the public telephone network
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.