Granted Patent
Utility
US 5,555,818 · App. 08/511,760
Dual face friction wedge
Inventor:
Robert L. Bullock
Patented Case
View Patent ↗
Granted: Sep 17, 1996
Filed: Aug 7, 1995
Inventor
Robert L. Bullock
Assignee (at issue)
STANDARD CAR TRUCK COMPANY
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.