Granted Patent
Utility
US 4,423,491 · App. 06/324,343
Self-refreshing memory cell
Inventor:
Andrew C. Tickle
Patented Case
View Patent ↗
Granted: Dec 27, 1983
Filed: Nov 23, 1981
Inventor
Andrew C. Tickle
Assignee (at issue)
Fairchild Camera & Instrument Corp.
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.