Patent Explorer
Browse, filter, and analyze 3 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US3934222A | Terrain closure warning system with climb inhibit and altitude gain measurement | Sundstrand Data Control Inc | Expired / Lapsed | 1975-04-02 | 1976-01-20 | 1995-04-02 | 0.0 yrs | 25 | |
| US3925751A | Glide slope warning system with a variable warning rate | Sundstrand Data Control Inc | Expired / Lapsed | 1975-04-02 | 1975-12-09 | 1995-04-02 | 0.0 yrs | 17 | |
| US3715718A | Ground proximity warning system utilizing radio and barometric altimeter combination | Sundstrand Data Control Inc | Expired / Lapsed | 1970-08-11 | 1973-02-06 | 1990-08-11 | 0.0 yrs | 19 |