Granted Patent
Utility
US 5,583,631 · App. 08/585,438
Anticounterfeit security device . . . including two security elements
Inventor:
Maurizio Lazzerini
Patented Case
View Patent ↗
Granted: Dec 10, 1996
Filed: Dec 8, 1995
Inventor
Maurizio Lazzerini
Assignee (at issue)
Mantegazza Antonio Arti Grafiche S.r.l.
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.