U.S. federal trademark · Serial No. 86057936
Water, Oil, or Gas (WOG) service valves used in conjunction with a pump on either a discharge or a suction side of a pump to prevent backflow. The WOG service valves are not large bore valves or a type of valve know as backflow preventer valves
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.