Granted Patent
Utility
US 4,567,580 · App. 06/508,782
Redundancy roll call technique
Inventor:
Ramesh C. Varshney
Patented Case
View Patent ↗
Granted: Jan 28, 1986
Filed: Jun 29, 1983
Inventor
Ramesh C. Varshney
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.