Granted Patent
Utility
US 4,468,981 · App. 06/307,840
Drive axle and fluid pump assembly
Inventor:
Donald L. Ries
Patented Case
View Patent ↗
Granted: Sep 4, 1984
Filed: Oct 2, 1981
Inventor
Donald L. Ries
Assignee (at issue)
Rockwell International 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.