Granted Patent
Utility
US 5,864,610 · App. 08/013,455
Interactive and information data services telephone billing system
Inventor:
Yzhak Ronen
Patented Case
View Patent ↗
Granted: Jan 26, 1999
Filed: Jan 26, 1998
Inventor
Yzhak Ronen
Assignee (at issue)
AT&T 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.