Patent Explorer
Browse, filter, and analyze 18 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US3808366A | Binary data transmission system | SPX Technologies Inc | Expired / Lapsed | 1972-12-11 | 1974-04-30 | 1992-12-11 | 0.0 yrs | 18 | |
| US3403382A | Code communication system with control of remote units | SPX Technologies Inc | Expired / Lapsed | 1965-06-08 | 1968-09-24 | 1985-06-08 | 0.0 yrs | 0 | |
| US3377616A | Vehicle identification system | SPX Technologies Inc | Expired / Lapsed | 1964-04-27 | 1968-04-09 | 1984-04-27 | 0.0 yrs | 0 | |
| US3340508A | Normally inactive supervisory control system with designated order of station selection | SPX Technologies Inc | Expired / Lapsed | 1963-11-26 | 1967-09-05 | 1983-11-26 | 0.0 yrs | 2 | |
| US3336577A | Telemetering system | SPX Technologies Inc | Expired / Lapsed | 1963-07-15 | 1967-08-15 | 1983-07-15 | 0.0 yrs | 2 | |
| US3110010A | Traffic directing system for parking areas | SPX Technologies Inc | Expired / Lapsed | 1961-05-01 | 1963-11-05 | 1981-05-01 | 0.0 yrs | 2 | |
| US3099817A | Vehicle performance monitoring system | SPX Technologies Inc | Expired / Lapsed | 1958-12-19 | 1963-07-30 | 1978-12-19 | 0.0 yrs | 2 | |
| US2679034A | Code integrity check for centralized traffic control systems | SPX Technologies Inc | Expired / Lapsed | 1952-02-26 | 1954-05-18 | 1972-02-26 | 0.0 yrs | 0 | |
| US2480443A | Recorder actuated by electrically heated wires | SPX Technologies Inc | Expired / Lapsed | 1945-10-03 | 1949-08-30 | 1965-10-03 | 0.0 yrs | 0 | |
| US2446232A | Plug board arrangement | SPX Technologies Inc | Expired / Lapsed | 1946-08-22 | 1948-08-03 | 1966-08-22 | 0.0 yrs | 0 | |
| US2378326A | Carrier frequency communication system | SPX Technologies Inc | Expired / Lapsed | 1944-07-12 | 1945-06-12 | 1964-07-12 | 0.0 yrs | 0 | |
| US2368826A | Centralized traffic controlling system for railroads | SPX Technologies Inc | Expired / Lapsed | 1942-05-11 | 1945-02-06 | 1962-05-11 | 0.0 yrs | 0 | |
| US2344761A | Airway traffic control system | SPX Technologies Inc | Expired / Lapsed | 1943-06-05 | 1944-03-21 | 1963-06-05 | 0.0 yrs | 0 | |
| US2280420A | Radio telephone system | SPX Technologies Inc | Expired / Lapsed | 1940-08-21 | 1942-04-21 | 1960-08-21 | 0.0 yrs | 0 | |
| US2265257A | Interlocking system for railroads | SPX Technologies Inc | Expired / Lapsed | 1936-03-20 | 1941-12-09 | 1956-03-20 | 0.0 yrs | 0 | |
| US2258122A | Relay | SPX Technologies Inc | Expired / Lapsed | 1939-01-28 | 1941-10-07 | 1959-01-28 | 0.0 yrs | 0 | |
| US2223103A | Centralized traffic controlling system for railroads | SPX Technologies Inc | Expired / Lapsed | 1938-02-25 | 1940-11-26 | 1958-02-25 | 0.0 yrs | 0 | |
| US2141551A | Centralized traffic controlling system for railroads | SPX Technologies Inc | Expired / Lapsed | 1936-08-01 | 1938-12-27 | 1956-08-01 | 0.0 yrs | 0 |