Sheffield Corp
SheffieldActive Patents
0
Total Holdings
17
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3237312A | Gaging device | Expired / Lapsed | 1962-10-01 | 1966-03-01 | 1 | Details |
| US3198431A | Fluid mixing system | Expired / Lapsed | 1963-01-04 | 1965-08-03 | 1 | Details |
| US3115819A | Prefabricated enclosure | Expired / Lapsed | 1961-03-06 | 1963-12-31 | 2 | Details |
| US2991594A | Machine device | Expired / Lapsed | 1957-10-17 | 1961-07-11 | 0 | Details |
| US2988415A | Machine system recorder | Expired / Lapsed | 1958-03-25 | 1961-06-13 | 0 | Details |
| US2843939A | Gaging apparatus | Expired / Lapsed | 1952-05-21 | 1958-07-22 | 0 | Details |
| US2833046A | Electromagnetic gage head | Expired / Lapsed | 1956-03-26 | 1958-05-06 | 0 | Details |
| US2718140A | Size gauging device | Expired / Lapsed | 1950-04-08 | 1955-09-20 | 0 | Details |
| US2683983A | Gauging device for bearings | Expired / Lapsed | 1950-07-22 | 1954-07-20 | 0 | Details |
| US2457297A | Fluid meter | Expired / Lapsed | 1944-11-10 | 1948-12-28 | 0 | Details |
| US2448653A | Size gauging device | Expired / Lapsed | 1946-04-10 | 1948-09-07 | 0 | Details |
| US2431099A | Gauging device | Expired / Lapsed | 1944-04-21 | 1947-11-18 | 0 | Details |
| US2431087A | Pneumatic gauging device | Expired / Lapsed | 1943-12-27 | 1947-11-18 | 0 | Details |
| US2403897A | Leakage gauging device | Expired / Lapsed | 1945-06-13 | 1946-07-16 | 0 | Details |
| US2358769A | Gauging device | Expired / Lapsed | 1943-03-06 | 1944-09-19 | 0 | Details |
| US2352507A | Gauging device | Expired / Lapsed | 1942-07-03 | 1944-06-27 | 0 | Details |
| US2254259A | Gauging device | Expired / Lapsed | 1940-06-19 | 1941-09-02 | 0 | Details |