Granted Patent
Utility
US 5,892,902 · App. 08/708,412
Intelligent token protected system with network authentication
Inventor:
Paul C. Clark
Patented Case
View Patent ↗
Granted: Apr 6, 1999
Filed: Sep 5, 1996
Inventor
Paul C. Clark
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.