Granted Patent
Utility
US 6,833,164 · App. 10/063,631
Single-step heat treating and surface coating on self-piercing rivets
Inventor:
Huimin Liu
Patented Case
View Patent ↗
Granted: Dec 21, 2004
Filed: May 6, 2002
Inventor
Huimin Liu
Assignee (at issue)
FORD GLOBAL TECHNOLOGIES, LLC
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.