Granted Patent
Utility
US 5,289,065 · App. 08/043,048
Zero air gap orbiting gear stepper motor
Inventor:
James E. Marshall
Patented Case
View Patent ↗
Granted: Feb 22, 1994
Filed: Apr 5, 1993
Inventor
James E. Marshall
Assignee (at issue)
Ford Motor Company
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.