Granted Patent
Utility
US 4,784,476 · App. 07/007,298
Nipi refractive index modulation apparatus and method
Inventors:
Joel N. Schulman, Uzi Efron
Patented Case
View Patent ↗
Granted: Nov 15, 1988
Filed: Jan 27, 1987
Inventors
Joel N. Schulman
Uzi Efron
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.