Granted Patent
Utility
US 4,667,767 · App. 06/704,655
Four wheel drive system including disengagement means
Inventors:
Dennis W. Shea, Albert Hart, Loris J. Charchian
Patented Case
View Patent ↗
Granted: May 26, 1987
Filed: Feb 22, 1985
Inventors
Dennis W. Shea
Albert Hart
Loris J. Charchian
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.