Granted Patent
Utility
US 4,819,154 · App. 06/937,978
Memory back up system with one cache memory and two physically separated main memories
Inventors:
Jack J. Stiffler, Michael J. Budwey, James M. Nolan, Jr.
Patented Case
View Patent ↗
Granted: Apr 4, 1989
Filed: Dec 4, 1986
Inventors
Jack J. Stiffler
Michael J. Budwey
James M. Nolan, Jr.
Assignee (at issue)
Sequoia Systems, Inc.
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.