Granted Patent
Utility
US 4,756,931 · App. 06/870,807
Retroreflective materials and methods for their production and use
Inventors:
John J. Giordano, Jeffrey P. Shawcross, Alfred Fuchs, Robert Dejaiffe
Patented Case
View Patent ↗
Granted: Jul 12, 1988
Filed: Jun 5, 1986
Inventors
John J. Giordano
Jeffrey P. Shawcross
Alfred Fuchs
Robert Dejaiffe
Assignee (at issue)
Potters Industries, LLC
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.