Indiana Steel Products Co
Indiana StActive Patents
0
Total Holdings
8
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2884572A | Magnetic chuck | Expired / Lapsed | 1955-05-25 | 1959-04-28 | 0 | Details |
| US2877929A | Slurry feeder | Expired / Lapsed | 1956-06-06 | 1959-03-17 | 0 | Details |
| US2639333A | Magnetic recorder | Expired / Lapsed | 1947-05-12 | 1953-05-19 | 0 | Details |
| US2539837A | Rotating magnetic reproducer | Expired / Lapsed | 1947-01-06 | 1951-01-30 | 0 | Details |
| US2532917A | Dual channel magnetic recorder and method | Expired / Lapsed | 1946-10-18 | 1950-12-05 | 0 | Details |
| US2484568A | Magnetic recorder method and means | Expired / Lapsed | 1946-10-18 | 1949-10-11 | 0 | Details |
| US2469266A | Magnetic transducer having an irregular nonmagnetic gap | Expired / Lapsed | 1946-08-14 | 1949-05-03 | 0 | Details |
| US2432819A | Method of making composite permanent magnets | Expired / Lapsed | 1944-09-28 | 1947-12-16 | 0 | Details |