Granted Patent
Utility
US 4,486,699 · App. 06/489,847
Tapped auxiliary winding for multi-speed operation of electric motor and method therefor
Inventors:
Keith I. Hoemann, Alan R. Barker
Patented Case
View Patent ↗
Granted: Dec 4, 1984
Filed: Apr 29, 1983
Inventors
Keith I. Hoemann
Alan R. Barker
Assignee (at issue)
Emerson Electric Co.
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.