U.S. federal trademark · Serial No. 86923852 · Reg. No. 5056524
Heating apparatus in the nature of a vent heater for preventing ice from forming in a sewer vent pipe; Heating apparatus in the nature of a sewer vent pipe heater that prevents ice build-up
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.