Granted Patent
Utility
US 4,348,104 · App. 06/227,941
Double exposure control for microfiche recording system
Inventor:
Herbert C. Ovshinsky
Patented Case
View Patent ↗
Granted: Sep 7, 1982
Filed: Jan 23, 1981
Inventor
Herbert C. 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.