Granted Patent
Utility
US 6,282,276 · App. 09/495,923
Method of billing a value-added call
Inventor:
David Felger
Patented Case
View Patent ↗
Granted: Aug 28, 2001
Filed: Feb 2, 2000
Inventor
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.