U.S. federal trademark · Serial No. 77220421 · Reg. No. 242
Air filters for use in heating, ventilation and air conditioning systems in institutional, commercial, industrial, agricultural and residential buildings
Air filters for mechanical purposes
Masks for use by medical personnel; surgical masks
Protective masks not for medical purposes
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.