Protel, Inc.
Records under this name other than patents Protel, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,850,607 | Intelligent vending system and method Lapsed on the fee record Ended Feb 1, 2017 · From the USPTO record | Lapsed on the fee record | Ended Feb 1, 2017 | From the USPTO record |
| US D430,149 | Handset cable plate for a pay telephone Term ended Term ended Aug 29, 2014 · From the USPTO record | Term ended | Term ended Aug 29, 2014 | From the USPTO record |
| US D429,711 | Pay telephone Term ended Term ended Aug 22, 2014 · From the USPTO record | Term ended | Term ended Aug 22, 2014 | From the USPTO record |
| US D429,712 | Front face bezel for a pay telephone Term ended Term ended Aug 22, 2014 · From the USPTO record | Term ended | Term ended Aug 22, 2014 | From the USPTO record |
| US 6,301,344 | Intelligent public telephone system and method Lapsed on the fee record Ended Oct 9, 2013 · From the USPTO record | Lapsed on the fee record | Ended Oct 9, 2013 | From the USPTO record |
| US 6,044,138 | Billing system Lapsed on the fee record Ended Mar 28, 2012 · From the USPTO record | Lapsed on the fee record | Ended Mar 28, 2012 | From the USPTO record |
| US 7,239,694 | Integrated Circuit Configurations and Methods for Providing Functions for Public Telephones Lapsed on the fee record Ended Jul 3, 2011 · High confidence | Lapsed on the fee record | Ended Jul 3, 2011 | High confidence |
| US 6,625,267 | Billing system Lapsed on the fee record Ended Sep 23, 2007 · From the USPTO record | Lapsed on the fee record | Ended Sep 23, 2007 | From the USPTO record |
| US 4,759,050 | Intelligent toll telephone system and method Term ended Term ended no later than Jul 19, 2008 · Low confidence | Term ended | Term ended no later than Jul 19, 2008 | Low confidence |
| US 4,759,054 | Toll telephone system and method for maintaining or initiating loop current after resuming on-hook condition Term ended Term ended no later than Jul 19, 2008 · Low confidence | Term ended | Term ended no later than Jul 19, 2008 | Low confidence |