Granted Patent
Utility
US 6,344,783 · App. 09/402,612
Electromagnet, specially for actuating valves
Inventors:
Rolf Neuhaus, Kurt R. Stratil, Andreas Ehrenfels, Frank Kattler, Hans Pauly
Patented Case
View Patent ↗
Granted: Feb 5, 2002
Filed: Nov 12, 1999
Inventors
Rolf Neuhaus
Kurt R. Stratil
Andreas Ehrenfels
Frank Kattler
Hans Pauly
Assignees (at issue)
Hydraulic-Ring GmbH
HYDAC Electronic 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.