Granted Patent
Utility
US 5,898,283 · App. 08/972,939
Voltage feedforward control system for a spindle motor of a disk drive
Inventor:
George J. Bennett
Patented Case
View Patent ↗
Granted: Apr 27, 1999
Filed: Nov 18, 1997
Inventor
George J. Bennett
Assignee (at issue)
Western Digital
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.