Warren Webster & Co
Warren WebActive Patents
0
Total Holdings
11
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2697813A | Magnetic amplifier system | Expired / Lapsed | 1951-04-12 | 1954-12-21 | 0 | Details |
| US2584856A | Electromagnetic system | Expired / Lapsed | 1946-12-31 | 1952-02-05 | 0 | Details |
| US2547933A | Automatic temperature control system | Expired / Lapsed | 1946-12-12 | 1951-04-10 | 0 | Details |
| US2487257A | Method of expanding containers by freezing liquid therein | Expired / Lapsed | 1946-11-23 | 1949-11-08 | 0 | Details |
| US2487287A | Radiator enclosure | Expired / Lapsed | 1946-04-17 | 1949-11-08 | 0 | Details |
| US2477729A | Electromagnetic motor control system | Expired / Lapsed | 1947-07-11 | 1949-08-02 | 0 | Details |
| US2219147A | Electrical control apparatus | Expired / Lapsed | 1937-08-31 | 1940-10-22 | 0 | Details |
| US2137024A | Apparatus for controlling heating systems | Expired / Lapsed | 1936-04-22 | 1938-11-15 | 0 | Details |
| US1271455A | Means for making elastic vessels. | Expired / Lapsed | 1915-09-22 | 1918-07-02 | 0 | Details |
| US963354A | Spraying apparatus. | Expired / Lapsed | 1910-02-11 | 1910-07-05 | 0 | Details |
| US941703A | Valve mechanism for heating apparatus. | Expired / Lapsed | 1907-03-13 | 1909-11-30 | 0 | Details |