Granted Patent
Utility
US 4,436,376 · App. 06/235,006
Light modulator, demodulator and method of communication employing the same
Inventor:
James L. Fergason
Patented Case
View Patent ↗
Granted: Mar 13, 1984
Filed: Feb 17, 1981
Inventor
James L. Fergason
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.