Granted Patent
Utility
US 4,968,933 · App. 07/305,068
Automotive wheel speed sensor assembly with stator pole piece carried within aperture of field coil
Inventor:
James W. Richmond
Patented Case
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Granted: Nov 6, 1990
Filed: Feb 2, 1989
Inventor
James W. Richmond
Assignee (at issue)
Emhart Industries, 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.