Granted Patent
Utility
US 5,363,331 · App. 07/994,674
Semiconductor memory with column line control circuits for protection against broken column lines
Inventors:
Katsuaki Matsui, Sampei Miyamoto
Patented Case
View Patent ↗
Granted: Nov 8, 1994
Filed: Dec 22, 1992
Inventors
Katsuaki Matsui
Sampei Miyamoto
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.