Granted Patent
Utility
US 5,659,604 · App. 08/536,845
System and method for tracing a call through a telecommunications network
Inventor:
Alfred G. Beckmann
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Sep 29, 1995
Inventor
Alfred G. Beckmann
Assignee (at issue)
MCI 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.