Granted Patent
Utility
US 4,942,564 · App. 07/265,219
Servo system gain compensation method for magneto-optic disk drives
Inventors:
Gregory Hofer, James C. McDonald
Patented Case
View Patent ↗
Granted: Jul 17, 1990
Filed: Oct 31, 1988
Inventors
Gregory Hofer
James C. McDonald
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.