Granted Patent
Utility
US 4,713,493 · App. 06/806,232
Power generating optical filter
Inventor:
Stanford R. Ovshinsky
Patented Case
View Patent ↗
Granted: Dec 15, 1987
Filed: Dec 6, 1985
Inventor
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.