Granted Patent
Utility
US 5,358,445 · App. 08/113,584
Variable angle torque transmitting coupling device
Inventor:
Robert A. Wuebker
Patented Case
View Patent ↗
Granted: Oct 25, 1994
Filed: Aug 27, 1993
Inventor
Robert A. Wuebker
Assignee (at issue)
Federal Signal Corporation
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.