Granted Patent
Utility
US 5,182,663 · App. 07/752,729
Liquid crystal display having improved retroreflector
Inventor:
Philip J. Jones
Patented Case
View Patent ↗
Granted: Jan 26, 1993
Filed: Aug 30, 1991
Inventor
Philip J. Jones
Assignee (at issue)
Raychem Limited
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.