Granted Patent
Utility
US 4,845,539 · App. 07/275,621
Semiconductor memory device
Inventor:
Yasukazu Inoue
Patented Case
View Patent ↗
Granted: Jul 4, 1989
Filed: Nov 15, 1988
Inventor
Yasukazu Inoue
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.