Granted Patent
Utility
US 5,901,207 · App. 08/723,747
System and method for charge number/calling party number switch call processing
Inventor:
Eddie L. Pickeral
Patented Case
View Patent ↗
Granted: May 4, 1999
Filed: Sep 30, 1996
Inventor
Eddie L. Pickeral
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.