Ohio Crankshaft Co
Ohio CrankActive Patents
0
Total Holdings
21
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3384730A | Machine feed mechanism | Expired / Lapsed | 1965-08-19 | 1968-05-21 | 0 | Details |
| US2787824A | Method of assembling two-bearing motor-generator units | Expired / Lapsed | 1951-08-01 | 1957-04-09 | 0 | Details |
| US2623293A | Means for accurately checking contours | Expired / Lapsed | 1949-02-25 | 1952-12-30 | 0 | Details |
| US2604577A | Heating and work handling apparatus | Expired / Lapsed | 1947-12-06 | 1952-07-22 | 0 | Details |
| US2582955A | High-frequency induction-heating apparatus | Expired / Lapsed | 1949-04-07 | 1952-01-22 | 0 | Details |
| US2577825A | Transformer | Expired / Lapsed | 1946-02-04 | 1951-12-11 | 0 | Details |
| US2541123A | Control system for inductionheating apparatus | Expired / Lapsed | 1946-07-08 | 1951-02-13 | 0 | Details |
| US2428303A | Induction heating means for gear teeth | Expired / Lapsed | 1943-02-24 | 1947-09-30 | 0 | Details |
| DE747963C | Process for the production of multi-part, bush-less bearing… | Expired / Lapsed | 1936-10-07 | 1944-10-23 | 0 | Details |
| US2356150A | Heat treatment of gear teeth | Expired / Lapsed | 1941-04-23 | 1944-08-22 | 0 | Details |
| US2329188A | Progressive heat treating | Expired / Lapsed | 1941-06-19 | 1943-09-14 | 0 | Details |
| US2293533A | Electric heating apparatus | Expired / Lapsed | 1940-04-13 | 1942-08-18 | 0 | Details |
| US2293047A | Apparatus for zone hardening | Expired / Lapsed | 1935-12-31 | 1942-08-18 | 0 | Details |
| US2282322A | Apparatus for electric heating | Expired / Lapsed | 1938-11-10 | 1942-05-12 | 0 | Details |
| US2280689A | Method of making composite articles | Expired / Lapsed | 1940-05-02 | 1942-04-21 | 0 | Details |
| US2271916A | Apparatus for multiple heat treating | Expired / Lapsed | 1940-08-02 | 1942-02-03 | 0 | Details |
| US2264301A | Heating and quenching apparatus | Expired / Lapsed | 1938-03-24 | 1941-12-02 | 0 | Details |
| US2255103A | Equipment for electric heating | Expired / Lapsed | 1938-10-15 | 1941-09-09 | 0 | Details |
| US2244056A | Automatic quenching apparatus | Expired / Lapsed | 1940-05-27 | 1941-06-03 | 0 | Details |
| US2202758A | Apparatus for progressive heat treatment | Expired / Lapsed | 1934-09-24 | 1940-05-28 | 0 | Details |
| US2145864A | Method of making hardened surface articles | Expired / Lapsed | 1934-07-12 | 1939-02-07 | 0 | Details |