Granted Patent
Utility
US 6,181,509 · App. 09/298,391
Low sulfur outgassing free machining stainless steel disk drive components
Inventors:
Eduardo Gatmaitan Canlas, Andrew Hanlon, Brad V. Johnson, Keith Freeman Wood, Deborah Lynn Yaney
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Apr 23, 1999
Inventors
Eduardo Gatmaitan Canlas
Andrew Hanlon
Brad V. Johnson
Keith Freeman Wood
Deborah Lynn Yaney
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.