Skytel Corp.
Records under this name other than patents Skytel Corp. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 5,144,648 | Method and apparatus for processing pages Term ended Term ended no later than Sep 1, 2012 · Low confidence | Term ended | Term ended no later than Sep 1, 2012 | Low confidence |
| US 5,278,891 | Ground-to-air telephone calling system and related method Formerly held Term ended Term ended no later than Jan 11, 2014 · Low confidence | Term ended | Term ended no later than Jan 11, 2014 | Low confidence |
| US 5,396,228 | Methods and apparatus for compressing and decompressing paging data Term ended Term ended no later than Mar 7, 2015 · Low confidence | Term ended | Term ended no later than Mar 7, 2015 | Low confidence |
| US 5,408,515 | Ground-to-air telephone calling system and related method for directing a call to a particular passenger Term ended Term ended no later than Apr 18, 2015 · Low confidence | Term ended | Term ended no later than Apr 18, 2015 | Low confidence |
| US 5,438,610 | Method for establishing a communication link between a ground-base caller and a passenger on board an aircraft Term ended Term ended no later than Aug 1, 2015 · Low confidence | Term ended | Term ended no later than Aug 1, 2015 | Low confidence |
| US 5,539,392 | Method for coordinating radio paging transmissions on local and nationwide channels Term ended Term ended no later than Jul 23, 2016 · Low confidence | Term ended | Term ended no later than Jul 23, 2016 | Low confidence |
| US 5,559,862 | Mobile paging telephone call back system and method Formerly held Term ended Term ended no later than Sep 24, 2016 · Low confidence | Term ended | Term ended no later than Sep 24, 2016 | Low confidence |
| US 5,581,804 | Nationwide communication system Formerly held Term ended Term ended no later than Dec 3, 2016 · Low confidence | Term ended | Term ended no later than Dec 3, 2016 | Low confidence |
| US 5,590,403 | Method and system for efficiently providing two way communication between a central network and mobile unit Formerly held Term ended Term ended no later than Dec 31, 2016 · Low confidence | Term ended | Term ended no later than Dec 31, 2016 | Low confidence |
| US 5,634,198 | Nationwide communication system Formerly held Term ended Term ended no later than May 27, 2017 · Low confidence | Term ended | Term ended no later than May 27, 2017 | Low confidence |