Granted Patent
Utility
US 5,627,424 · App. 08/381,188
Twin bobbin four pole motors and methods for making same
Inventor:
Robert E. Steiner
Patented Case
View Patent ↗
Granted: May 6, 1997
Filed: Jan 31, 1995
Inventor
Robert E. Steiner
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.