Granted Patent
Utility
US 4,430,730 · App. 06/316,159
FET Memory with refresh
Inventor:
Paul C. Tien
Patented Case
View Patent ↗
Granted: Feb 7, 1984
Filed: Oct 29, 1981
Inventor
Paul C. Tien
Assignee (at issue)
International Business Machines 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.