Granted Patent
Utility
US 6,553,108 · App. 09/495,924
Method of billing a communication session conducted over a computer network
Inventor:
David Felger
Patented Case
View Patent ↗
Granted: Apr 22, 2003
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.