Granted Patent
Utility
US 5,319,599 · App. 07/874,627
Redundancy circuit for semiconductor memory device
Inventor:
Yasushi Kato
Patented Case
View Patent ↗
Granted: Jun 7, 1994
Filed: Apr 27, 1992
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.