Granted Patent
Utility
US 5,711,346 · App. 08/640,311
Fluid control element
Inventors:
Manfred Pieloth, Dieter Schrepel, Heinz Topfer
Patented Case
View Patent ↗
Granted: Jan 27, 1998
Filed: Apr 30, 1996
Inventors
Manfred Pieloth
Dieter Schrepel
Heinz Topfer
Assignee (at issue)
Burkert Werke 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.