Granted Patent
Utility
US 5,255,264 · App. 07/766,047
Distributed control switching network for multi-line telephone communications
Inventors:
John M. Cotton, Neil C. Olsen, Alex T. Wissink, Gary V. Pieper, William A. Oswald, Nicholas Necula, Enrique Abreu, Maurice J. Mascarenhas, Rudy De Bruyn
Patented Case
View Patent ↗
Granted: Oct 19, 1993
Filed: Sep 26, 1991
Inventors
John M. Cotton
Neil C. Olsen
Alex T. Wissink
Gary V. Pieper
William A. Oswald
Nicholas Necula
Enrique Abreu
Maurice J. Mascarenhas
Rudy De Bruyn
Assignee (at issue)
IPC Information Systems, LLC
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.