U.S. federal trademark · Serial No. 74519140 · Reg. No. 2044116
liquid oxygen system comprised of a double-walled vacuum-insulated tank, a vent valve, two pressure relief valves, a fill valve, a full-level indicator and a remote contents indicator used in ambulances and other emergency vehicles to provide gaseous oxygen for patient treatment
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.