Patent Explorer
Browse, filter, and analyze 10 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US4115665A | Multiple circuit interrupter for telecommunication system | Italtel SpA | Expired / Lapsed | 1977-04-05 | 1978-09-19 | 1997-04-05 | 0.0 yrs | 7 | |
| US4035838A | Cable distribution system for wide-band message signals | Italtel SpA | Expired / Lapsed | 1976-03-16 | 1977-07-12 | 1996-03-16 | 0.0 yrs | 10 | |
| US3818306A | Stabilized power supply with transformer isolation | Italtel SpA | Expired / Lapsed | 1973-02-20 | 1974-06-18 | 1993-02-20 | 0.0 yrs | 4 | |
| US3681694A | Radio telecommunication system with automatic replacement of defective channels | Italtel SpA | Expired / Lapsed | 1969-05-14 | 1972-08-01 | 1989-05-14 | 0.0 yrs | 20 | |
| US3634627A | Channel-allocation system for a channel-addressing multiple-access telecommunication system | Italtel SpA | Expired / Lapsed | 1970-07-21 | 1972-01-11 | 1990-07-21 | 0.0 yrs | 18 | |
| US3588371A | Radiotelephone system for communication between a central office and vehicle-borne mobile units | Italtel SpA | Expired / Lapsed | 1969-02-03 | 1971-06-28 | 1989-02-03 | 0.0 yrs | 0 | |
| US3573752A | Pulse-code-modulation system with converging signal paths | Italtel SpA | Expired / Lapsed | 1969-07-01 | 1971-04-06 | 1989-07-01 | 0.0 yrs | 7 | |
| US3560660A | Time-allocation communication system with scrambling network | Italtel SpA | Expired / Lapsed | 1968-12-16 | 1971-02-02 | 1988-12-16 | 0.0 yrs | 11 | |
| US3518549A | Automatic protection switching system for communication channels | Italtel SpA | Expired / Lapsed | 1965-10-24 | 1970-06-30 | 1985-10-24 | 0.0 yrs | 0 | |
| US3398296A | Digital logic information signal distributor for multichannel telecommunication systems which pass only one signal at a time | Italtel SpA | Expired / Lapsed | 1964-05-08 | 1968-08-20 | 1984-05-08 | 0.0 yrs | 0 |