Marquardt Corp
MarquardtActive Patents
0
Total Holdings
5
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3491333A | Pulse sonar navigational system | Expired / Lapsed | 1968-06-14 | 1970-01-20 | 0 | Details |
| US3221304A | Electronic identification system employing a data bearing i… | Expired / Lapsed | 1961-02-23 | 1965-11-30 | 4 | Details |
| US3203328A | Full circumferential viewing system | Expired / Lapsed | 1963-02-21 | 1965-08-31 | 2 | Details |
| US3046739A | Gas turbine fuel control system | Expired / Lapsed | 1960-05-26 | 1962-07-31 | 0 | Details |
| US3047851A | Electronic character generating and displaying apparatus | Expired / Lapsed | 1958-03-21 | 1962-07-31 | 0 | Details |