Granted Patent
Utility
US 6,544,019 · App. 09/905,771
Pump with magnetic clutch
Inventors:
Hans Martin, Jürgen Bohner, Raimund Rosch
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: Jul 13, 2001
Inventors
Hans Martin
Jürgen Bohner
Raimund Rosch
Assignee (at issue)
Schwabische Huttenwerke GmbH
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.