Granted Patent
Utility
US 5,403,040 · App. 07/859,946
Optically variable and machine-readable device for use on security documents
Inventors:
William H. Mowry, Jr., William J. Castle, Robert L. Neitman
Patented Case
View Patent ↗
Granted: Apr 4, 1995
Filed: Mar 30, 1992
Inventors
William H. Mowry, Jr.
William J. Castle
Robert L. Neitman
Assignee (at issue)
Standard Register, 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.