Granted Patent
Utility
US 6,035,021 · App. 08/475,425
Telephonic-interface statistical analysis system
Inventor:
Ronald A. Katz
Patented Case
View Patent ↗
Granted: Mar 7, 2000
Filed: Jun 7, 1995
Inventor
Ronald A. Katz
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.