Granted Patent
Utility
US 5,933,480 · App. 08/971,047
Method for billing and controlling fraud in providing pay information services
Inventor:
David Felger
Patented Case
View Patent ↗
Granted: Aug 3, 1999
Filed: Nov 14, 1997
Inventor
David Felger
Assignee (at issue)
David Felger
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.