Patent Explorer
Browse, filter, and analyze 3 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2673957A | Shunt for low-voltage circuit testers | JOSEPH WEIDENHOFF Inc | Expired / Lapsed | 1951-07-06 | 1954-03-30 | 1971-07-06 | 0.0 yrs | 0 | |
| US2136924A | Lighting neon tubes | JOSEPH WEIDENHOFF Inc | Expired / Lapsed | 1934-09-24 | 1938-11-15 | 1954-09-24 | 0.0 yrs | 0 | |
| US2062174A | Electron discharge oscillograph | JOSEPH WEIDENHOFF Inc | Expired / Lapsed | 1935-03-14 | 1936-11-24 | 1955-03-14 | 0.0 yrs | 0 |