U.S. federal trademark · Serial No. 88320355
Filters being parts of central heating apparatus and installations; filters being for use in central heating systems; water filters for heating boilers; industrial boilers and electrical boilers for removing iron oxide; heating boilers for household purposes; air filters specially adapted for air purifiers; air filters for industrial installations
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.