B F STURTEVANT Co Inc

B F STURTE

Active Patents

Total Holdings

Patent Holdings

Patent No.	Title	Status	Filing Date	Grant Date	Actions
US2179873A	Heating and humidifying system	Expired / Lapsed	1938-06-09	1939-11-14	Details
US2091563A	Air conditioning system utilizing refrigeration	Expired / Lapsed	1936-03-13	1937-08-31	Details
US2032692A	Heat exchange unit	Expired / Lapsed	1935-03-23	1936-03-03	Details