Granted Patent
Utility
US 3,988,720 · App. 05/546,312
Recording and retrieving information in an amorphous memory material using a catalytic material
Inventor:
Stanford R. Ovshinsky
Patented Case
View Patent ↗
Granted: Oct 26, 1976
Filed: Feb 3, 1975
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.