Lear Inc
Lear IncActive Patents
0
Total Holdings
29
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| GB755484A | Improved power boost for an automotive vehicle steering mec… | Expired / Lapsed | 1954-08-31 | — | 0 | Details |
| US3004437A | All attitude single axis gyroscopic reference | Expired / Lapsed | 1958-03-13 | 1961-10-17 | 0 | Details |
| US2982867A | Quadrature stripping network | Expired / Lapsed | 1956-10-25 | 1961-05-02 | 0 | Details |
| US2980826A | Time delay relay device | Expired / Lapsed | 1957-05-01 | 1961-04-18 | 0 | Details |
| US2967680A | Aircraft longitudinal control augmenter | Expired / Lapsed | 1958-09-02 | 1961-01-10 | 0 | Details |
| US2959691A | Differentiating circuit utilizing capacitive means and alte… | Expired / Lapsed | 1957-10-17 | 1960-11-08 | 0 | Details |
| US2948156A | Linear integrating torquing mechanism | Expired / Lapsed | 1957-11-01 | 1960-08-09 | 0 | Details |
| US2945349A | Miniature gas turbine | Expired / Lapsed | 1957-11-12 | 1960-07-19 | 0 | Details |
| US2945959A | Pickoff responsive to displacement between relatively movab… | Expired / Lapsed | 1957-05-03 | 1960-07-19 | 0 | Details |
| US2945996A | Servo amplifier system | Expired / Lapsed | 1956-11-28 | 1960-07-19 | 0 | Details |
| US2897379A | Transistor phase discriminator | Expired / Lapsed | 1956-10-25 | 1959-07-28 | 0 | Details |
| US2887875A | No inertia torque tester | Expired / Lapsed | 1957-06-18 | 1959-05-26 | 0 | Details |
| US2875419A | Tunable radio frequency coils | Expired / Lapsed | 1954-10-14 | 1959-02-24 | 0 | Details |
| US2874293A | Regulated oscillator | Expired / Lapsed | 1957-07-31 | 1959-02-17 | 0 | Details |
| US2867731A | Line frequency doubler | Expired / Lapsed | 1956-12-28 | 1959-01-06 | 0 | Details |
| US2814679A | Switching device | Expired / Lapsed | 1955-06-23 | 1957-11-26 | 0 | Details |
| US2679394A | Magazine and drive for magnetic tape reproducers | Expired / Lapsed | 1951-08-30 | 1954-05-25 | 0 | Details |
| US2482887A | Drive system for magnetic recorders | Expired / Lapsed | 1945-10-25 | 1949-09-27 | 0 | Details |
| US2475461A | Electric remote-control system | Expired / Lapsed | 1945-02-12 | 1949-07-05 | 0 | Details |
| US2475457A | Antihunt positioning apparatus | Expired / Lapsed | 1945-02-12 | 1949-07-05 | 0 | Details |
| US2469269A | Unitary mechanical actuator device | Expired / Lapsed | 1943-04-17 | 1949-05-03 | 0 | Details |
| US2454401A | Electronic motor control system | Expired / Lapsed | 1945-02-12 | 1948-11-23 | 0 | Details |
| US2438222A | Magnetic sound translating system | Expired / Lapsed | 1945-05-22 | 1948-03-23 | 0 | Details |
| US2436582A | Variable-speed control system | Expired / Lapsed | 1943-08-28 | 1948-02-24 | 0 | Details |
| US2432772A | Telemetric indicating system | Expired / Lapsed | 1944-01-15 | 1947-12-16 | 0 | Details |
| US2424498A | Continuous magnetic recording system | Expired / Lapsed | 1945-03-02 | 1947-07-22 | 0 | Details |
| US2422267A | Gyroscope caging device | Expired / Lapsed | 1944-07-31 | 1947-06-17 | 0 | Details |
| US2409130A | Radio azimuth compensator | Expired / Lapsed | 1942-10-31 | 1946-10-08 | 0 | Details |
| US2403098A | Automatic motor synchronization control | Expired / Lapsed | 1944-02-03 | 1946-07-02 | 0 | Details |