Granted Patent
Utility
US 5,336,871 · App. 07/831,267
Holographic enhancement of card security
Inventor:
Gilbert Colgate, Jr.
Patented Case
View Patent ↗
Granted: Aug 9, 1994
Filed: Feb 7, 1992
Inventor
Gilbert Colgate, Jr.
Assignee (at issue)
AMERICAN BANK NOTE HOLOGRAPHICS, INC.
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.