Granted Patent
Utility
US 5,142,383 · App. 07/678,747
Holograms with discontinuous metallization including alpha-numeric shapes
Inventor:
Donald W. Mallik
Patented Case
View Patent ↗
Granted: Aug 25, 1992
Filed: Apr 1, 1991
Inventor
Donald W. Mallik
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.