Granted Patent
Utility
US 5,971,621 · App. 09/072,009
Axial shaft retention design
Inventors:
Harry H. Oyafuso, William John Call
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: May 4, 1998
Inventors
Harry H. Oyafuso
William John Call
Assignee (at issue)
Ford Motor 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.