Granted Patent
Utility
US 5,335,022 · App. 08/126,150
High-contrast front projection video display system
Inventors:
David Braun, Terence J. Nelson, Lanny S. Smoot
Patented Case
View Patent ↗
Granted: Aug 2, 1994
Filed: Sep 23, 1993
Inventors
David Braun
Terence J. Nelson
Lanny S. Smoot
Assignee (at issue)
Bell Communications Research, 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.