Patent Explorer
Browse, filter, and analyze 4 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US3200304A | Touch control circuit | Tung Sol Electric Inc | Expired / Lapsed | 1962-04-25 | 1965-08-10 | 1982-04-25 | 0.0 yrs | 2 | |
| US3171066A | Touch control circuits | Tung Sol Electric Inc | Expired / Lapsed | 1960-07-05 | 1965-02-23 | 1980-07-05 | 0.0 yrs | 2 | |
| US3128421A | Series rectifier circuit with capacity compensating means | Tung Sol Electric Inc | Expired / Lapsed | 1961-05-19 | 1964-04-07 | 1981-05-19 | 0.0 yrs | 1 | |
| US2975344A | Semiconductor field effect device | Tung Sol Electric Inc | Expired / Lapsed | 1959-05-28 | 1961-03-14 | 1979-05-28 | 0.0 yrs | 0 |