Granted Patent
Utility
US 6,474,630 · App. 09/841,342
Air spring swage assembly
Inventor:
David A. Weitzenhof
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Apr 24, 2001
Inventor
David A. Weitzenhof
Assignee (at issue)
BFS Diversified Products, 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.