Granted Patent
Utility
US 5,214,604 · App. 07/748,508
Electrically programmable read only memory device with dummy memory cells used in diagnostic operation on decoder units
Inventor:
Yasushi Kato
Patented Case
View Patent ↗
Granted: May 25, 1993
Filed: Aug 22, 1991
Inventor
Yasushi Kato
Assignee (at issue)
NEC CORPORATION
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.