Granted Patent
Utility
US 5,761,650 · App. 08/581,731
Billing system and method
Inventors:
Wesley E. Munsil, James R. Logan, Alan Switzer
Patented Case
View Patent ↗
Granted: Jun 2, 1998
Filed: Dec 29, 1995
Inventors
Wesley E. Munsil
James R. Logan
Alan Switzer
Assignee (at issue)
CSG Systems, Inc.
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.