Granted Patent
Utility
US 5,572,597 · App. 08/468,832
Fingerprint classification system
Inventors:
Chung-Fu Chang, Edward E. Hilbert
Patented Case
View Patent ↗
Granted: Nov 5, 1996
Filed: Jun 6, 1995
Inventors
Chung-Fu Chang
Edward E. Hilbert
Assignee (at issue)
L'ORÉAL
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.