Granted Patent
Utility
US 4,430,603 · App. 06/284,385
Brushless direct current motor having a once-around pulse generating means
Inventor:
Rolf Muller
Patented Case
View Patent ↗
Granted: Feb 7, 1984
Filed: Jul 17, 1981
Inventor
Rolf Muller
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.