Granted Patent
Utility
US 5,285,417 · App. 07/723,158
Semiconductor memory device having breaker associated with address decoder circuit for deactivating defective memory cell
Inventor:
Keita Maeda
Patented Case
View Patent ↗
Granted: Feb 8, 1994
Filed: Jun 28, 1991
Inventor
Keita Maeda
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.