DM0000: The mark consists of the words "MATHESON ask...The Gas Professionals" and an overlapping circles design.
GS0091: Instruments, namely, gas detectors, safety analyzers, detection systems primarily comprised of gas detectors, gas monitors, gas calibration kits comprised of pressure regulators and flowmeters for field calibration of gas detection systems or portable instrumentation, and regulators and gauges, and controls and parts thereof for the controlled dispensing and measuring of gases in laboratory and industrial use; flow instrumentation, namely, flow meters, mass flow transducers, blenders, gas standards generators, flow-totalizers, rotameters, and control valves for measuring and controlling the flow of gases and for the monitoring and control of gases; apparatus for the handling, measuring, and controlled dispensing of compressed gases from cylinders, namely, control valves, pressure regulators for regulating the handling, measuring, and controlled dispensing of compresses gases and cryogenic liquids, flow meters, and gauges; equipment for gas containment and distribution, namely, gas panels, gas cabinets, gas manifolds, switchover systems primarily comprised of more than one gas source, two regulators and a common discharge line, point-of-use distribution panels, pressure regulators, flow valves, monitors, pressure transducers, and pressure monitors; gas detectors and monitors; and mass flow meters for flow sensing of gases
CC0000: Color is not claimed as a feature of the mark.
GS0111: Apparatus for the handling, measuring, and controlled dispensing of compressed gases in cylinders, namely, separators for filtering and purifying compressed gases