Granted Patent
Utility
US 5,544,227 · App. 08/474,522
Radiotelephone communications system with direct access to interoffice telephone trunk circuits and interface therefor
Inventors:
Stephen M. Blust, Edward I. Comer, Jere Sandidge
Patented Case
View Patent ↗
Granted: Aug 6, 1996
Filed: Jun 7, 1995
Inventors
Stephen M. Blust
Edward I. Comer
Jere Sandidge
Assignee (at issue)
BellSouth Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.