Granted Patent
Utility
US 5,617,937 · App. 08/545,519
Rotation preventing device for a plastic cage of an overrunning clutch
Inventors:
Herbert Zettner, Johann Stark
Patented Case
View Patent ↗
Granted: Apr 8, 1997
Filed: Oct 19, 1995
Inventors
Herbert Zettner
Johann Stark
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.