Granted Patent
Utility
US 5,980,417 · App. 09/130,127
Differential case insert
Inventor:
Albert H. Wopshall, Jr.
Patented Case
View Patent ↗
Granted: Nov 9, 1999
Filed: Aug 6, 1998
Inventor
Albert H. Wopshall, Jr.
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.