Granted Patent
Utility
US 4,811,209 · App. 06/892,512
Cache memory with multiple valid bits for each data indication the validity within different contents
Inventor:
Jonathan J. Rubinstein
Patented Case
View Patent ↗
Granted: Mar 7, 1989
Filed: Jul 31, 1986
Inventor
Jonathan J. Rubinstein
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.