Granted Patent
Utility
US 4,394,594 · App. 06/171,810
Motor with a disk rotor
Inventors:
Fritz Schmider, Rolf Muller
Patented Case
View Patent ↗
Granted: Jul 19, 1983
Filed: Jul 24, 1980
Inventors
Fritz Schmider
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.