Granted Patent
Utility
US 5,418,739 · App. 08/186,093
Semiconductor memory device
Inventor:
Atsushi Takasugi
Patented Case
View Patent ↗
Granted: May 23, 1995
Filed: Jan 25, 1994
Inventor
Atsushi Takasugi
Assignee (at issue)
OKI ELECTRIC INDUSTRY CO., LTD.
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.