Granted Patent
Utility
US 5,960,069 · App. 08/757,563
Method of billing a multiple service representative conference call
Inventor:
David Felger
Patented Case
View Patent ↗
Granted: Sep 28, 1999
Filed: Nov 27, 1996
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.