U.S. federal trademark · Serial No. 99586275
Installation, maintenance and repair of oil separators; Installation of drying apparatus; Repair and maintenance of drying apparatus; Installation of heating, refrigerating, air-conditioning, drying, ventilating and dust extraction apparatus; Maintenance and repair of heating, refrigerating, air-conditioning, drying, ventilating and dust extraction apparatus; Installation, maintenance and repair of air filters; all of the foregoing for industrial and commercial systems and excluding the installation, maintenance, and repair of residential heating, ventilation, cooling, and air cleaning systems
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.