Granted Patent
Utility
US 4,492,890 · App. 06/495,809
Stator winding providing magnetomotive force wave of reduced harmonic content
Inventor:
Daniel J. MacDonald
Patented Case
View Patent ↗
Granted: Jan 8, 1985
Filed: May 18, 1983
Inventor
Daniel J. MacDonald
Assignee (at issue)
Litton Industrial Products, 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.