Granted Patent
Utility
US 4,643,284 · App. 06/626,897
Non-differential drive axle
Inventors:
John G. Hardt, Dennis W. Shea
Patented Case
View Patent ↗
Granted: Feb 17, 1987
Filed: Jul 2, 1984
Inventors
John G. Hardt
Dennis W. Shea
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.