Granted Patent
Utility
US 4,555,586 · App. 06/637,984
Photovoltiac device having long term energy conversion stability and method of producing same
Inventors:
Subhendu Guha, William DenBoer
Patented Case
View Patent ↗
Granted: Nov 26, 1985
Filed: Aug 6, 1984
Inventors
Subhendu Guha
William DenBoer
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.