Patent Explorer
Browse, filter, and analyze 4 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US4711418A | Radio based railway signaling and traffic control system | SASIB SpA Bologna | Expired / Lapsed | 1986-04-08 | 1987-12-08 | 2006-04-08 | 0.0 yrs | 20 | |
| US4080654A | Vehicle performance monitor | SASIB SpA Bologna | Expired / Lapsed | 1976-03-25 | 1978-03-21 | 1996-03-25 | 0.0 yrs | 19 | |
| US3995173A | Solid state fail-safe logic system | SASIB SpA Bologna | Expired / Lapsed | 1975-05-05 | 1976-11-30 | 1995-05-05 | 0.0 yrs | 42 | |
| US3836768A | Centralized traffic control system for railroads | SASIB SpA Bologna | Expired / Lapsed | 1972-09-22 | 1974-09-17 | 1992-09-22 | 0.0 yrs | 15 |