Patent Explorer
Browse, filter, and analyze 2 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US4247768A | Vehicle velocity related measuring systems | British Railways Board | Expired / Lapsed | 1978-11-30 | 1981-01-27 | 1998-11-30 | 0.0 yrs | 17 | |
| US3888437A | Vehicle control systems | British Railways Board | Expired / Lapsed | 1973-06-11 | 1975-06-10 | 1993-06-11 | 0.0 yrs | 9 |