Granted Patent
Utility
US 4,958,321 · App. 07/247,887
One transistor flash EPROM cell
Inventor:
Chi Chang
Patented Case
View Patent ↗
Granted: Sep 18, 1990
Filed: Sep 22, 1988
Inventor
Chi Chang
Assignee (at issue)
Advanced Micro 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.