Patent Explorer
Browse, filter, and analyze 3 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US4850036A | Radio communication system using synchronous frequency hopping transmissions | Avaya Technology LLC | Expired / Lapsed | 1987-08-21 | 1989-07-18 | 2007-08-21 | 0.0 yrs | 20 | |
| US4747124A | PBX telephone call control system | Avaya Technology LLC | Expired / Lapsed | 1985-05-06 | 1988-05-24 | 2005-05-06 | 0.0 yrs | 16 | |
| US4672658A | Spread spectrum wireless PBX | Avaya Technology LLC | Expired / Lapsed | 1986-10-23 | 1987-06-09 | 2006-10-23 | 0.0 yrs | 26 |