Granted Patent
Utility
US 4,335,939 · App. 06/139,627
Optical modulators and apparatus including such modulators
Inventors:
John E. Stovell, John E. Aughton, Alberto Yi
Patented Case
View Patent ↗
Granted: Jun 22, 1982
Filed: Apr 14, 1980
Inventors
John E. Stovell
John E. Aughton
Alberto Yi
Assignee (at issue)
Crosfield Electronics Limited
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.