U.S. federal trademark · Serial No. 75065464
system for entering, recording, and dialing telephone numbers and other digital information, namely a prepaid telephone calling card encoded with a machine readable code, and a separate hand-held optical reader/dialer used to read the data encoded on the calling card and to generate dialing tones corresponding thereto
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.