BF Sturtevant Co
BF SturtevActive Patents
0
Total Holdings
37
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2405813A | Drier | Expired / Lapsed | 1944-05-06 | 1946-08-13 | 0 | Details |
| US2390879A | Propeller fan | Expired / Lapsed | 1940-09-21 | 1945-12-11 | 0 | Details |
| US2388210A | Refrigeration system for air-conditioned passenger vehicles | Expired / Lapsed | 1943-04-23 | 1945-10-30 | 0 | Details |
| US2358138A | Dusting apparatus | Expired / Lapsed | 1942-08-29 | 1944-09-12 | 0 | Details |
| US2347153A | Engine cooling system | Expired / Lapsed | 1942-09-25 | 1944-04-18 | 0 | Details |
| US2340252A | Tempering apparatus for refrigerated air | Expired / Lapsed | 1941-01-04 | 1944-01-25 | 0 | Details |
| US2319913A | Thrust bearing | Expired / Lapsed | 1941-03-27 | 1943-05-25 | 0 | Details |
| US2276144A | Fan heater unit | Expired / Lapsed | 1940-08-17 | 1942-03-10 | 0 | Details |
| US2257485A | Air conditioning system | Expired / Lapsed | 1939-08-15 | 1941-09-30 | 0 | Details |
| US2234037A | Air conditioning system utilizing refrigeration | Expired / Lapsed | 1938-11-17 | 1941-03-04 | 0 | Details |
| US2231824A | Automatically controlled winter air conditioning system | Expired / Lapsed | 1940-06-15 | 1941-02-11 | 0 | Details |
| US2229163A | Refrigeration control for air conditioning | Expired / Lapsed | 1939-05-03 | 1941-01-21 | 0 | Details |
| US2197740A | Pressure ventilating system | Expired / Lapsed | 1938-07-22 | 1940-04-16 | 0 | Details |
| US2191224A | Apparatus for conditioning air | Expired / Lapsed | 1934-07-19 | 1940-02-20 | 0 | Details |
| US2183387A | Air conditioning system | Expired / Lapsed | 1937-07-14 | 1939-12-12 | 0 | Details |
| US2160389A | Air conditioning system | Expired / Lapsed | 1938-01-12 | 1939-05-30 | 0 | Details |
| US2157685A | Air conditioning system utilizing refrigeration | Expired / Lapsed | 1936-07-02 | 1939-05-09 | 0 | Details |
| US2144466A | Heat exchange unit | Expired / Lapsed | 1937-03-13 | 1939-01-17 | 0 | Details |
| US2100489A | Fan | Expired / Lapsed | 1936-07-31 | 1937-11-30 | 0 | Details |
| US2100481A | Fan | Expired / Lapsed | 1933-01-26 | 1937-11-30 | 0 | Details |
| US2096373A | Dry kiln | Expired / Lapsed | 1936-05-23 | 1937-10-19 | 0 | Details |
| US2091562A | Air conditioning system | Expired / Lapsed | 1935-08-30 | 1937-08-31 | 0 | Details |
| US2082955A | Fan | Expired / Lapsed | 1936-07-21 | 1937-06-08 | 0 | Details |
| US2065070A | Apparatus for drying materials applied to sheets | Expired / Lapsed | 1931-01-29 | 1936-12-22 | 0 | Details |
| US2050700A | Centrifugal fan | Expired / Lapsed | 1935-05-23 | 1936-08-11 | 0 | Details |
| US1989413A | Centrifugal fan | Expired / Lapsed | 1929-10-31 | 1935-01-29 | 0 | Details |
| US1985636A | Refrigeration system for vehicles | Expired / Lapsed | 1933-12-19 | 1934-12-25 | 0 | Details |
| US1973554A | Elastic fluid turbine | Expired / Lapsed | 1930-03-01 | 1934-09-11 | 0 | Details |
| US1958890A | Cooling apparatus | Expired / Lapsed | 1930-03-27 | 1934-05-15 | 0 | Details |
| US1912114A | Clamp | Expired / Lapsed | 1931-06-03 | 1933-05-30 | 0 | Details |
| US1892303A | Method and apparatus for propelling fluids | Expired / Lapsed | 1927-07-02 | 1932-12-27 | 0 | Details |
| US1886777A | Air conditioning apparatus | Expired / Lapsed | 1930-02-14 | 1932-11-08 | 0 | Details |
| US1860377A | Air conditioning control | Expired / Lapsed | 1931-05-08 | 1932-05-31 | 0 | Details |
| US1724902A | Bearing | Expired / Lapsed | 1924-02-27 | 1929-08-20 | 0 | Details |
| US1471112A | Apparatus for cooling air | Expired / Lapsed | 1919-12-13 | 1923-10-16 | 0 | Details |
| US1191393A | Balancing-ring. | Expired / Lapsed | 1912-08-12 | 1916-07-18 | 0 | Details |
| US1038110A | Centrifugal fan-wheel. | Expired / Lapsed | 1911-01-28 | 1912-09-10 | 0 | Details |