Granted Patent
Utility
US 6,453,558 · App. 09/827,418
Method of locking together exhaust components
Inventor:
Freddie A. Baldwin
Patented Case
View Patent ↗
Granted: Sep 24, 2002
Filed: Apr 6, 2001
Inventor
Freddie A. Baldwin
Assignee (at issue)
ArvinMeritor GmbH
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.