Granted Patent
Utility
US 4,845,739 · App. 07/194,258
Telephonic-interface statistical analysis system
Inventor:
Ronald A. Katz
Patented Case
View Patent ↗
Granted: Jul 4, 1989
Filed: May 16, 1988
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.