Webster Electric Co Inc
Webster ElActive Patents
0
Total Holdings
19
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2975672A | Combined tape recorder and film projector | Expired / Lapsed | 1954-07-21 | 1961-03-21 | 0 | Details |
| US2742284A | Magazine for an elongated record medium | Expired / Lapsed | 1951-01-19 | 1956-04-17 | 0 | Details |
| US2668878A | Transducer | Expired / Lapsed | 1950-07-29 | 1954-02-09 | 0 | Details |
| US2479077A | Balanced hydraulic pump or motor | Expired / Lapsed | 1945-07-23 | 1949-08-16 | 0 | Details |
| US2475785A | Tone arm and pickup assembly | Expired / Lapsed | 1947-03-18 | 1949-07-12 | 0 | Details |
| US2323307A | Communication system | Expired / Lapsed | 1940-07-01 | 1943-07-06 | 0 | Details |
| US2313324A | Crystal pickup unit | Expired / Lapsed | 1941-10-03 | 1943-03-09 | 0 | Details |
| US2301446A | Safety fuel ignition device | Expired / Lapsed | 1940-05-27 | 1942-11-10 | 0 | Details |
| US2256743A | Fuel pump | Expired / Lapsed | 1938-12-08 | 1941-09-23 | 0 | Details |
| US2233709A | Fuel supply unit for oil burners | Expired / Lapsed | 1937-01-02 | 1941-03-04 | 0 | Details |
| US2223070A | Two-stage fuel pump | Expired / Lapsed | 1938-06-08 | 1940-11-26 | 0 | Details |
| US2162369A | Communication system | Expired / Lapsed | 1937-07-19 | 1939-06-13 | 0 | Details |
| US2119740A | Fuel regulator valve for oil burners | Expired / Lapsed | 1936-03-27 | 1938-06-07 | 0 | Details |
| US2090035A | Fuel supply unit for oil burners | Expired / Lapsed | 1936-02-08 | 1937-08-17 | 0 | Details |
| US2023423A | Strainer | Expired / Lapsed | 1934-04-20 | 1935-12-10 | 0 | Details |
| US2009137A | Multistage pump and pumping system | Expired / Lapsed | 1932-04-12 | 1935-07-23 | 0 | Details |
| US1999697A | Pressure responsive valve | Expired / Lapsed | 1933-04-11 | 1935-04-30 | 0 | Details |
| US1605038A | Impulse starter for magnetos | Expired / Lapsed | 1923-12-24 | 1926-11-02 | 0 | Details |
| US1180489A | Magneto-machine. | Expired / Lapsed | 1915-05-22 | 1916-04-25 | 0 | Details |