Granted Patent
Utility
US 4,547,714 · App. 06/567,527
Low magnetic leakage flux brushless pulse controlled d-c motor
Inventor:
Rolf Muller
Patented Case
View Patent ↗
Granted: Oct 15, 1985
Filed: Jan 3, 1984
Inventor
Rolf Muller
Assignee (at issue)
Papst Motoren GmbH & Co KG
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.