Granted Patent
Utility
US 5,452,957 · App. 08/343,180
Center bearing assembly including support member containing rheological fluid
Inventor:
James A. Duggan
Patented Case
View Patent ↗
Granted: Sep 26, 1995
Filed: Nov 22, 1994
Inventor
James A. Duggan
Assignee (at issue)
DANA LIMITED
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.