Granted Patent
Utility
US 4,332,880 · App. 06/173,046
Imaging film with improved passivating layers
Inventors:
Masatsugu Izu, Vincent D. Cannella
Patented Case
View Patent ↗
Granted: Jun 1, 1982
Filed: Aug 4, 1980
Inventors
Masatsugu Izu
Vincent D. Cannella
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.