Granted Patent
Utility
US 5,508,874 · App. 08/062,503
Disconnect switch circuit to power head retract in hard disk drive memories
Inventors:
Richard K. Williams, Allen A. Chang, Barry Concklin
Patented Case
View Patent ↗
Granted: Apr 16, 1996
Filed: May 14, 1993
Inventors
Richard K. Williams
Allen A. Chang
Barry Concklin
Assignee (at issue)
SILICONIX INCORPORATED
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.