Granted Patent
Utility
US 6,572,077 · App. 09/719,139
Double safety magnetic valve
Inventor:
Jürgen Wörner
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: Dec 7, 2000
Inventor
Jürgen Wörner
Assignee (at issue)
KARL DUNGS GmbH & Co.
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.