Servel Inc
Servel IncActive Patents
0
Total Holdings
32
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2438487A | Articulated ice tray grid | Expired / Lapsed | 1939-12-12 | 1948-03-30 | 0 | Details |
| US2407721A | Refrigerating apparatus | Expired / Lapsed | 1944-03-23 | 1946-09-17 | 0 | Details |
| US2377782A | Refrigeration | Expired / Lapsed | 1941-08-09 | 1945-06-05 | 0 | Details |
| US2360286A | Refrigeration | Expired / Lapsed | 1942-07-10 | 1944-10-10 | 0 | Details |
| US2344400A | Gas burner | Expired / Lapsed | 1940-05-02 | 1944-03-14 | 0 | Details |
| US2334803A | Refrigeration | Expired / Lapsed | 1940-02-20 | 1943-11-23 | 0 | Details |
| US2330943A | Welding | Expired / Lapsed | 1941-11-28 | 1943-10-05 | 0 | Details |
| US2321115A | Air conditioning | Expired / Lapsed | 1940-02-06 | 1943-06-08 | 0 | Details |
| US2321110A | Heat exchanger | Expired / Lapsed | 1936-08-25 | 1943-06-08 | 0 | Details |
| US2320501A | Refrigeration | Expired / Lapsed | 1939-11-03 | 1943-06-01 | 0 | Details |
| US2290813A | Compressor shaft seal | Expired / Lapsed | 1940-06-28 | 1942-07-21 | 0 | Details |
| US2269101A | Heat transfer system | Expired / Lapsed | 1937-03-20 | 1942-01-06 | 0 | Details |
| US2269099A | Heat transfer system | Expired / Lapsed | 1936-10-23 | 1942-01-06 | 0 | Details |
| US2267279A | Refrigerator | Expired / Lapsed | 1939-11-13 | 1941-12-23 | 0 | Details |
| US2264495A | Ionization of gas | Expired / Lapsed | 1937-06-30 | 1941-12-02 | 0 | Details |
| US2261682A | Refrigeration | Expired / Lapsed | 1937-08-10 | 1941-11-04 | 0 | Details |
| US2261681A | Refrigeration | Expired / Lapsed | 1937-06-17 | 1941-11-04 | 0 | Details |
| US2252144A | Refrigerator door latch | Expired / Lapsed | 1937-12-27 | 1941-08-12 | 0 | Details |
| US2234639A | Refrigerator | Expired / Lapsed | 1937-04-08 | 1941-03-11 | 0 | Details |
| US2227899A | Fuel burner | Expired / Lapsed | 1936-10-08 | 1941-01-07 | 0 | Details |
| US2217875A | Refrigerator | Expired / Lapsed | 1937-05-20 | 1940-10-15 | 0 | Details |
| US2211033A | Air cooling and conditioning apparatus | Expired / Lapsed | 1932-07-29 | 1940-08-13 | 0 | Details |
| US2201974A | Float valve | Expired / Lapsed | 1937-06-22 | 1940-05-28 | 0 | Details |
| US2181376A | Refrigeration | Expired / Lapsed | 1937-06-17 | 1939-11-28 | 0 | Details |
| US2178807A | Refrigeration | Expired / Lapsed | 1935-12-20 | 1939-11-07 | 0 | Details |
| US2076770A | Evaporator | Expired / Lapsed | 1933-08-18 | 1937-04-13 | 0 | Details |
| US2066660A | Refrigeration | Expired / Lapsed | 1932-11-12 | 1937-01-05 | 0 | Details |
| US2042507A | Evaporator for refrigerating apparatus | Expired / Lapsed | 1932-05-17 | 1936-06-02 | 0 | Details |
| US2042355A | Refrigerating system | Expired / Lapsed | 1932-07-23 | 1936-05-26 | 0 | Details |
| US1928300A | Motor-pump unit | Expired / Lapsed | 1930-07-17 | 1933-09-26 | 0 | Details |
| US1899378A | Method of and apparatus for separating a liquid from other … | Expired / Lapsed | 1926-10-20 | 1933-02-28 | 0 | Details |
| US1760168A | Refrigeration | Expired / Lapsed | 1927-02-26 | 1930-05-27 | 0 | Details |