Granted Patent
Utility
US 5,746,441 · App. 08/756,947
Center beam suspension system
Inventor:
Ervin K. VanDenberg
Patented Case
View Patent ↗
Granted: May 5, 1998
Filed: Dec 2, 1996
Inventor
Ervin K. VanDenberg
Assignee (at issue)
Rockwell Heavy Vehicle Suspension Systems, 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.