Granted Patent
Utility
US 4,622,654 · App. 06/570,980
Liquid crystal light valve with memory
Inventors:
Zvi Yaniv, David Strand, John Vala
Patented Case
View Patent ↗
Granted: Nov 11, 1986
Filed: Jan 16, 1984
Inventors
Zvi Yaniv
David Strand
John Vala
Assignee (at issue)
Energy Conversion Devices, 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.