Robotron Corp
Robotron CActive Patents
0
Total Holdings
12
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3129341A | Synchronous weld timer using semiconductor controlled recti… | Expired / Lapsed | 1960-09-06 | 1964-04-14 | 2 | Details |
| US3058010A | Switching circuit utilizing semi-conductor, controlled rect… | Expired / Lapsed | 1960-08-29 | 1962-10-09 | 0 | Details |
| US2971263A | Electrical device | Expired / Lapsed | 1958-04-30 | 1961-02-14 | 0 | Details |
| US2911581A | Three phase to single phase welding method and machine | Expired / Lapsed | 1956-09-19 | 1959-11-03 | 0 | Details |
| US2898801A | Inspection device for detecting differences in two objects | Expired / Lapsed | 1955-06-09 | 1959-08-11 | 0 | Details |
| US2842672A | Comparator circuit using photo multiplier tubes | Expired / Lapsed | 1955-02-08 | 1958-07-08 | 0 | Details |
| US2806197A | Power voltage regulator | Expired / Lapsed | 1954-11-05 | 1957-09-10 | 0 | Details |
| US2806181A | Metal detecting apparatus | Expired / Lapsed | 1954-10-06 | 1957-09-10 | 0 | Details |
| US2761967A | Timing relay | Expired / Lapsed | 1952-11-10 | 1956-09-04 | 0 | Details |
| US2730657A | Multiple phase control system | Expired / Lapsed | 1950-06-08 | 1956-01-10 | 0 | Details |
| US2666887A | Electric arc device | Expired / Lapsed | 1951-02-03 | 1954-01-19 | 0 | Details |
| US2516422A | Control by capacitor discharge blocking | Expired / Lapsed | 1949-06-29 | 1950-07-25 | 0 | Details |