Granted Patent
Utility
US 4,737,934 · App. 06/788,899
Data storage device and system having an optically non transmissive chalcogenide layer
Inventors:
Randall R. Ross, Erik J. Bjornard
Patented Case
View Patent ↗
Granted: Apr 12, 1988
Filed: Oct 18, 1985
Inventors
Randall R. Ross
Erik J. Bjornard
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.