Granted Patent
Utility
US 6,322,050 · App. 09/852,367
Method of manufacture of element having ceramic insert and high-strength element-to-shaft connection for use in a valve
Inventor:
Bradford Haines
Patented Case
View Patent ↗
Granted: Nov 27, 2001
Filed: May 10, 2001
Inventor
Bradford Haines
Assignee (at issue)
Flowserve Holdings, 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.