Granted Patent
Utility
US 6,390,684 · App. 09/898,855
Method and apparatus for reducing stress on rotating shaft bearings
Inventor:
David C. Bown
Patented Case
View Patent ↗
Granted: May 21, 2002
Filed: Jul 3, 2001
Inventor
David C. Bown
Assignee (at issue)
GSI LUMONICS 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.