U.S. federal trademark · Serial No. 76102764 · Reg. No. 2531644
Telecommunications equipment, namely telephones, telephone switches, PBX's, telephone circuit cards, audio conferencing equipment, key service units (KSU), data service units (DSU), channel service units (CSU), headsets, key systems, data routers and data switches
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.