SPX Technologies Inc
SPX TechnoActive Patents
0
Total Holdings
10
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3403382A | Code communication system with control of remote units | Expired / Lapsed | 1965-06-08 | 1968-09-24 | 0 | Details |
| US3340508A | Normally inactive supervisory control system with designate… | Expired / Lapsed | 1963-11-26 | 1967-09-05 | 2 | Details |
| US3110010A | Traffic directing system for parking areas | Expired / Lapsed | 1961-05-01 | 1963-11-05 | 2 | Details |
| US2679034A | Code integrity check for centralized traffic control systems | Expired / Lapsed | 1952-02-26 | 1954-05-18 | 0 | Details |
| US2480443A | Recorder actuated by electrically heated wires | Expired / Lapsed | 1945-10-03 | 1949-08-30 | 0 | Details |
| US2378326A | Carrier frequency communication system | Expired / Lapsed | 1944-07-12 | 1945-06-12 | 0 | Details |
| US2368826A | Centralized traffic controlling system for railroads | Expired / Lapsed | 1942-05-11 | 1945-02-06 | 0 | Details |
| US2280420A | Radio telephone system | Expired / Lapsed | 1940-08-21 | 1942-04-21 | 0 | Details |
| US2223103A | Centralized traffic controlling system for railroads | Expired / Lapsed | 1938-02-25 | 1940-11-26 | 0 | Details |
| US2141551A | Centralized traffic controlling system for railroads | Expired / Lapsed | 1936-08-01 | 1938-12-27 | 0 | Details |