Granted Patent
Utility
US 6,219,439 · App. 09/350,771
Biometric authentication system
Inventor:
Paul Burger
Patented Case
View Patent ↗
Granted: Apr 17, 2001
Filed: Jul 9, 1999
Inventor
Paul Burger
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.