Granted Patent
Utility
US 6,356,409 · App. 09/461,894
Balancing apparatus and method for high speed hard disk drive spindles
Inventors:
Kirk B. Price, Andrew Hanlon
Patented Case
View Patent ↗
Granted: Mar 12, 2002
Filed: Dec 15, 1999
Inventors
Kirk B. Price
Andrew Hanlon
Assignee (at issue)
International Business Machines Corporation
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.