Granted Patent
Utility
US 6,438,262 · App. 09/117,668
Security document validation
Inventors:
Ronald Bernardini, John A. Gorczyca, Phil Skipper
Patented Case
View Patent ↗
Granted: Aug 20, 2002
Filed: Apr 14, 1999
Inventors
Ronald Bernardini
John A. Gorczyca
Phil Skipper
Assignee (at issue)
Mars, Incorporated
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.