Granted Patent
Utility
US 4,349,957 · App. 06/145,121
Method of making a bobbin wound stepping motor
Inventor:
Robert S. Lundin
Patented Case
View Patent ↗
Granted: Sep 21, 1982
Filed: Apr 30, 1980
Inventor
Robert S. Lundin
Assignee (at issue)
Superior Electron, LLC
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.