Granted Patent
Utility
US 4,902,941 · App. 07/111,366
Drive motor for information-storage-disk devices
Inventors:
Alfred Merkle, Georg Moosmann, Rolf Muller
Patented Case
View Patent ↗
Granted: Feb 20, 1990
Filed: Oct 20, 1987
Inventors
Alfred Merkle
Georg Moosmann
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.