Granted Patent
Utility
US 4,400,409 · App. 06/151,301
Method of making p-doped silicon films
Inventors:
Masatsugu Izu, Vincent D. Cannella, Stanford R. Ovshinsky
Patented Case
View Patent ↗
Granted: Aug 23, 1983
Filed: May 19, 1980
Inventors
Masatsugu Izu
Vincent D. Cannella
Stanford R. Ovshinsky
Assignee (at issue)
Energy Conversion Devices, Inc.
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.