Granted Patent
Utility
US 5,552,934 · App. 08/210,603
Background reflection-reducing plano-beam splitter for use in real image projecting system
Inventor:
Jonathan Robert Prince
Patented Case
View Patent ↗
Granted: Sep 3, 1996
Filed: Mar 18, 1994
Inventor
Jonathan Robert Prince
Assignee (at issue)
S. P. M. Company
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.