Granted Patent
Utility
US 5,568,641 · App. 08/375,095
Powerfail durable flash EEPROM upgrade
Inventors:
Marvin D. Nelson, Barry J. Oldfield, Mark D. Petersen
Patented Case
View Patent ↗
Granted: Oct 22, 1996
Filed: Jan 18, 1995
Inventors
Marvin D. Nelson
Barry J. Oldfield
Mark D. Petersen
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.