Granted Patent
Utility
US 6,452,349 · App. 09/831,103
Electronically commutated motor
Inventors:
Alexander Hahn, Hermann Rappenecker
Patented Case
View Patent ↗
Granted: Sep 17, 2002
Filed: May 3, 2001
Inventors
Alexander Hahn
Hermann Rappenecker
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.