Granted Patent
Utility
US 5,222,642 · App. 07/805,306
Article having a selectively changeable visual display
Inventor:
James J. Solarz
Patented Case
View Patent ↗
Granted: Jun 29, 1993
Filed: Dec 10, 1991
Inventor
James J. Solarz
Assignee (at issue)
ERO Industries, 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.