Granted Patent
Utility
US 6,723,017 · App. 10/142,705
Differential assembly
Inventors:
William Paul Perkins, Norman Szalony
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: May 9, 2002
Inventors
William Paul Perkins
Norman Szalony
Assignee (at issue)
Visteon Global Technologies, Inc.
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.