Granted Patent
Utility
US 5,117,414 · App. 07/246,502
Drive motor and spindle assembly for an optical disk drive
Inventor:
Marcus L. Caldwell
Patented Case
View Patent ↗
Granted: May 26, 1992
Filed: Sep 19, 1988
Inventor
Marcus L. Caldwell
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.