Granted Patent
Utility
US 5,452,293 · App. 08/188,559
Apparatus and method of transmitting call information prior to establishing a connection path
Inventors:
I. C. Keith Wilkinson, P. Kingston Duffie, Lawrence G. Roberts
Patented Case
View Patent ↗
Granted: Sep 19, 1995
Filed: Jan 27, 1994
Inventors
I. C. Keith Wilkinson
P. Kingston Duffie
Lawrence G. Roberts
Assignee (at issue)
DSC Communications 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.