Infilco Inc
Infilco InActive Patents
0
Total Holdings
32
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2938868A | Method of controlling regeneration of ion exchangers and ap… | Expired / Lapsed | 1955-03-11 | 1960-05-31 | 2 | Details |
| US2895494A | Device for producing pressures varying proportionally to va… | Expired / Lapsed | 1954-08-09 | 1959-07-21 | 0 | Details |
| US2867233A | Liquid level control system | Expired / Lapsed | 1954-07-15 | 1959-01-06 | 0 | Details |
| US2710099A | Apparatus for cleaning filters | Expired / Lapsed | 1949-08-20 | 1955-06-07 | 2 | Details |
| US2678912A | Apparatus for separating grit and grease from waste waters | Expired / Lapsed | 1949-11-04 | 1954-05-18 | 2 | Details |
| US2629689A | Water purifying and degasifying apparatus and process | Expired / Lapsed | 1948-04-12 | 1953-02-24 | 2 | Details |
| US2623112A | Telemetric transmitter | Expired / Lapsed | 1950-11-20 | 1952-12-23 | 0 | Details |
| US2622858A | Apparatus for submerged gas diffusion | Expired / Lapsed | 1948-04-22 | 1952-12-23 | 0 | Details |
| US2584455A | Pneumatic telemetering transmitter | Expired / Lapsed | 1947-08-05 | 1952-02-05 | 0 | Details |
| US2577967A | Diaphragm valve | Expired / Lapsed | 1947-07-30 | 1951-12-11 | 0 | Details |
| US2570132A | Filter | Expired / Lapsed | 1949-09-13 | 1951-10-02 | 0 | Details |
| US2538412A | Sludge heater | Expired / Lapsed | 1945-12-29 | 1951-01-16 | 2 | Details |
| US2520547A | Linear pneumatic converter | Expired / Lapsed | 1949-04-30 | 1950-08-29 | 0 | Details |
| US2496366A | Liquid level gauge | Expired / Lapsed | 1946-10-25 | 1950-02-07 | 0 | Details |
| US2451029A | Flow controller reset | Expired / Lapsed | 1944-02-04 | 1948-10-12 | 0 | Details |
| US2429316A | Process and apparatus for improving clarification of turbid… | Expired / Lapsed | 1942-10-26 | 1947-10-21 | 0 | Details |
| US2425372A | Apparatus and process for improving separation of clarified… | Expired / Lapsed | 1943-01-07 | 1947-08-12 | 0 | Details |
| US2402959A | Removal of boron from boron polluted substances | Expired / Lapsed | 1943-05-13 | 1946-07-02 | 0 | Details |
| US2395825A | Preparation and use of anion material | Expired / Lapsed | 1941-04-28 | 1946-03-05 | 0 | Details |
| US2391738A | Liquid treating apparatus | Expired / Lapsed | 1941-12-08 | 1945-12-25 | 0 | Details |
| US2376918A | Hydraulic switch device | Expired / Lapsed | 1943-05-26 | 1945-05-29 | 0 | Details |
| US2363174A | Actuator control | Expired / Lapsed | 1942-11-04 | 1944-11-21 | 0 | Details |
| US2348806A | Sewage sampler | Expired / Lapsed | 1941-05-05 | 1944-05-16 | 0 | Details |
| US2348124A | Liquid treatment | Expired / Lapsed | 1941-06-06 | 1944-05-02 | 0 | Details |
| US2348123A | Treatment of liquid | Expired / Lapsed | 1940-09-13 | 1944-05-02 | 0 | Details |
| US2348122A | Liquid treatment | Expired / Lapsed | 1940-05-29 | 1944-05-02 | 0 | Details |
| US2303597A | Measuring pump | Expired / Lapsed | 1940-05-09 | 1942-12-01 | 0 | Details |
| US2296437A | Water treatment and apparatus | Expired / Lapsed | 1938-11-25 | 1942-09-22 | 0 | Details |
| US2245587A | Liquid treating apparatus | Expired / Lapsed | 1936-06-05 | 1941-06-17 | 0 | Details |
| US2217751A | Program control | Expired / Lapsed | 1937-09-24 | 1940-10-15 | 0 | Details |
| US2183075A | Liquid control | Expired / Lapsed | 1935-11-29 | 1939-12-12 | 0 | Details |
| US2138266A | Flow metering device | Expired / Lapsed | 1936-04-23 | 1938-11-29 | 0 | Details |