Granted Patent
Utility
US 4,879,747 · App. 07/170,734
Method and system for personal identification
Inventors:
Frank T. Leighton, Silvio Micali
Patented Case
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Granted: Nov 7, 1989
Filed: Mar 21, 1988
Inventors
Frank T. Leighton
Silvio Micali
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.