Granted Patent
Utility
US 5,517,957 · App. 08/526,627
Device for damping torsional vibrations in a drive train
Inventors:
Jorg Wagner, Norbert Bethke, Ernst Neuwirth, Henrik Brehler, Rudolf Polster, Sigurd Wilhelm
Patented Case
View Patent ↗
Granted: May 21, 1996
Filed: Sep 11, 1995
Inventors
Jorg Wagner
Norbert Bethke
Ernst Neuwirth
Henrik Brehler
Rudolf Polster
Sigurd Wilhelm
Assignee (at issue)
INA-WALZLAGER SCHAEFFLER KG
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.