Granted Patent
Utility
US 5,081,542 · App. 07/450,118
Liquid crystal light valve goggles for eye protection
Inventors:
Uzi Efron, Shin-Tson Wu, Tsung-Yuan Hsu, Wayne P. Schoenmakers
Patented Case
View Patent ↗
Granted: Jan 14, 1992
Filed: Dec 12, 1989
Inventors
Uzi Efron
Shin-Tson Wu
Tsung-Yuan Hsu
Wayne P. Schoenmakers
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.