Patent Explorer
Browse, filter, and analyze 5 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2884545A | Transistor protection circuit | General Precision Laboratory Inc | Expired / Lapsed | 1954-03-17 | 1959-04-28 | 1974-03-17 | 0.0 yrs | 0 | |
| US2669121A | Supersonic flow meter | General Precision Laboratory Inc | Expired / Lapsed | 1948-12-02 | 1954-02-16 | 1968-12-02 | 0.0 yrs | 0 | |
| US2584267A | Automatic plotting board and projecting means | General Precision Laboratory Inc | Expired / Lapsed | 1949-02-17 | 1952-02-05 | 1969-02-17 | 0.0 yrs | 0 | |
| US2569164A | Variable sweep circuit | General Precision Laboratory Inc | Expired / Lapsed | 1949-09-23 | 1951-09-25 | 1969-09-23 | 0.0 yrs | 0 | |
| US2559499A | Electronic switch circuit | General Precision Laboratory Inc | Expired / Lapsed | 1949-10-21 | 1951-07-03 | 1969-10-21 | 0.0 yrs | 0 |