Granted Patent
Utility
US 4,792,968 · App. 07/018,244
Statistical analysis system for use with public communication facility
Inventor:
Ronald A. Katz
Patented Case
View Patent ↗
Granted: Dec 20, 1988
Filed: Feb 24, 1987
Inventor
Ronald A. Katz
Assignee (at issue)
FDR Interactive Technologies
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.