Granted Patent
Utility
US 5,420,937 · App. 08/115,515
Fingerprint information extraction by twin tracker border line analysis
Inventor:
Phillip Davis
Patented Case
View Patent ↗
Granted: May 30, 1995
Filed: Sep 1, 1993
Inventor
Phillip Davis
Assignee (at issue)
Phoenix, LLC
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.