Fischer and Porter Co
Fischer anActive Patents
0
Total Holdings
12
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US4048854A | System for determining the ratio of oil to water in a meter… | Expired / Lapsed | 1976-09-17 | 1977-09-20 | 9 | Details |
| US3776033A | Vortex-type mass flowmeters | Expired / Lapsed | 1972-03-06 | 1973-12-04 | 7 | Details |
| US3455162A | Turbine flowmeter transducer transmission system | Expired / Lapsed | 1967-01-24 | 1969-07-15 | 0 | Details |
| US3353718A | Syringe, column or the like | Expired / Lapsed | 1966-05-24 | 1967-11-21 | 2 | Details |
| US3274833A | Differential pressure transmitters | Expired / Lapsed | 1963-04-23 | 1966-09-27 | 2 | Details |
| US3177711A | Turbine flowmeter | Expired / Lapsed | 1961-09-08 | 1965-04-13 | 0 | Details |
| US3147612A | Consistency measuring apparatus | Expired / Lapsed | 1962-09-14 | 1964-09-08 | 2 | Details |
| US3115777A | Mass flowmeter | Expired / Lapsed | 1958-10-21 | 1963-12-31 | 2 | Details |
| US3005978A | Electro-pneumatic data logger | Expired / Lapsed | 1955-12-01 | 1961-10-24 | 0 | Details |
| US2662223A | Telemetering impedance bridge | Expired / Lapsed | 1949-07-22 | 1953-12-08 | 0 | Details |
| US2419942A | Flow actuated switch | Expired / Lapsed | 1943-10-18 | 1947-05-06 | 0 | Details |
| US2313889A | Rotameter and the like | Expired / Lapsed | 1941-08-22 | 1943-03-16 | 0 | Details |