Granted Patent
Utility
US 5,633,919 · App. 08/473,765
Real-time billing system for a call processing system
Inventors:
Steven J. Hogan, Kristi T. Feltz, Douglas R. Murdock, Eric Busch
Patented Case
View Patent ↗
Granted: May 27, 1997
Filed: Jun 6, 1995
Inventors
Steven J. Hogan
Kristi T. Feltz
Douglas R. Murdock
Eric Busch
Assignee (at issue)
Link USA Corp.
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.