Granted Patent
Utility
US 4,933,927 · App. 07/315,148
Disk centering method and apparatus for centering disks for disk drives
Inventor:
John P. Ross
Patented Case
View Patent ↗
Granted: Jun 12, 1990
Filed: Feb 24, 1989
Inventor
John P. Ross
Assignee (at issue)
Conner Peripherals, Inc.
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.