Granted Patent
Utility
US 4,701,889 · App. 06/737,006
Static semiconductor memory device
Inventor:
Manabu Ando
Patented Case
View Patent ↗
Granted: Oct 20, 1987
Filed: May 23, 1985
Inventor
Manabu Ando
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.