Applicant seeks registration of the mark in connection with Installation and removal of insulating materials in residential buildings, roofs and structures ; HVAC contractor services ; HVAC duct cleaning services ; Installation of HVAC systems ; Maintenance of HVAC systems for the entire United States,except for the State of California. Applicant is using the mark in advertising, including print and web-related media in connection with Applicant's business. Atticman Heating & Air Conditioning, Insulation Inc. (the "excepted user"), located at 11900 Old Eureka Way, Gold River, California 95670, claims to have used the mark Atticman in the state of California since 2017 by means of advertising for residential HVAC contractor services. The excepted user has Registration No. 6,699,232. Applicant's date of first use in commerce is prior to the filing date of any application filed by the excepted user.