Granted Patent
Utility
US 5,140,449 · App. 07/828,100
Liquid crystal light valve in combination with a cathode ray tube containing a far-red emitting double-activated yttrium aluminum garnet phosphor
Inventors:
Esther Sluzky, Mary A. Lemoine, Kenneth R. Hesse
Patented Case
View Patent ↗
Granted: Aug 18, 1992
Filed: Jan 30, 1992
Inventors
Esther Sluzky
Mary A. Lemoine
Kenneth R. Hesse
Assignee (at issue)
Hughes Aircraft 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.