Granted Patent
Utility
US 4,791,343 · App. 07/091,676
Stepper motor shaft position sensor
Inventor:
Terry Ahrendt
Patented Case
View Patent ↗
Granted: Dec 13, 1988
Filed: Aug 31, 1987
Inventor
Terry Ahrendt
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.