Granted Patent
Utility
US 4,826,293 · App. 07/021,381
Electron beam addressed liquid crystal light valve with input sheet conductor
Inventors:
Jan Grinberg, Nubuo J. Koda, Philip G. Reif, William P. Bleha, Jr., Murray S. Welkowsky, Arno G. Ledebuhr
Patented Case
View Patent ↗
Granted: May 2, 1989
Filed: Mar 3, 1987
Inventors
Jan Grinberg
Nubuo J. Koda
Philip G. Reif
William P. Bleha, Jr.
Murray S. Welkowsky
Arno G. Ledebuhr
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.