US Filter Wallace and Tiernan Inc
US FilterActive Patents
0
Total Holdings
17
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3095745A | Differential pressure instrument | Expired / Lapsed | 1959-05-28 | 1963-07-02 | 2 | Details |
| US2929393A | Gas flow control apparatus | Expired / Lapsed | 1957-03-21 | 1960-03-22 | 0 | Details |
| US2560317A | Method of determining the concentration of a chemical const… | Expired / Lapsed | 1946-02-27 | 1951-07-10 | 2 | Details |
| US2396934A | Detection of the chemical condition of materials | Expired / Lapsed | 1940-08-03 | 1946-03-19 | 0 | Details |
| US2368905A | Aneroid barometer movement | Expired / Lapsed | 1941-09-24 | 1945-02-06 | 0 | Details |
| US2354086A | Radiometeorograph receiving relay apparatus | Expired / Lapsed | 1941-09-30 | 1944-07-18 | 0 | Details |
| US2347345A | Radiometeorograph transmitting apparatus | Expired / Lapsed | 1941-12-31 | 1944-04-25 | 0 | Details |
| US2347160A | Radiometeorograph transmitting apparatus | Expired / Lapsed | 1940-04-04 | 1944-04-18 | 0 | Details |
| US2341810A | Color comparator | Expired / Lapsed | 1941-09-30 | 1944-02-15 | 0 | Details |
| US2336994A | Proportional control system and procedure | Expired / Lapsed | 1938-12-05 | 1943-12-14 | 0 | Details |
| US2299529A | Apparatus for controlling the condition of material | Expired / Lapsed | 1937-06-10 | 1942-10-20 | 0 | Details |
| US2284476A | Voltmeter apparatus | Expired / Lapsed | 1938-05-31 | 1942-05-26 | 0 | Details |
| US2234349A | Motor control apparatus | Expired / Lapsed | 1936-04-17 | 1941-03-11 | 0 | Details |
| US2222218A | Synchronous selector apparatus | Expired / Lapsed | 1936-12-18 | 1940-11-19 | 0 | Details |
| US2165062A | Communicating system | Expired / Lapsed | 1935-03-19 | 1939-07-04 | 0 | Details |
| US2097850A | Sealing joint and method of making the same | Expired / Lapsed | 1935-08-10 | 1937-11-02 | 0 | Details |
| US1964228A | Vernier telemetric system | Expired / Lapsed | 1929-04-20 | 1934-06-26 | 0 | Details |