Granted Patent
Utility
US 4,291,950 · App. 06/138,463
Electro-optic devices using Stark-induced birefringence and dichroism
Inventors:
David M. Pepper, Marvin Klein
Patented Case
View Patent ↗
Granted: Sep 29, 1981
Filed: Apr 8, 1980
Inventors
David M. Pepper
Marvin Klein
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.