Granted Patent
Utility
US 4,830,161 · App. 07/102,051
Fan clutch
Inventors:
John L. Hall, David T. Fenzel, Dennis R. Shamine
Patented Case
View Patent ↗
Granted: May 16, 1989
Filed: Sep 25, 1987
Inventors
John L. Hall
David T. Fenzel
Dennis R. Shamine
Assignee (at issue)
AlliedSignal, 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.