Granted Patent
Utility
US 5,065,393 · App. 07/507,363
Network controller billing system and method of operation
Inventors:
Marcille Sibbitt, Dowell Stackpole
Patented Case
View Patent ↗
Granted: Nov 12, 1991
Filed: Apr 10, 1990
Inventors
Marcille Sibbitt
Dowell Stackpole
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.