Patent Explorer
Browse, filter, and analyze 2 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US3038110A | Control circuit for indicating the voltage drop of a battery below a predetermined value | Boelkow Entwicklungen KG | Expired / Lapsed | 1960-10-28 | 1962-06-05 | 1980-10-28 | 0.0 yrs | 0 | |
| US2916832A | Helicopter trainer mounted on float | Boelkow Entwicklungen KG | Expired / Lapsed | 1956-11-05 | 1959-12-15 | 1976-11-05 | 0.0 yrs | 0 |