Granted Patent
Utility
US 5,184,238 · App. 07/797,036
Apparatus for projecting light onto a surface having reflector means for improving the brightness of the image
Inventor:
Graham Wright
Patented Case
View Patent ↗
Granted: Feb 2, 1993
Filed: Nov 25, 1991
Inventor
Graham Wright
Assignee (at issue)
Thorn EMI plc
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.