Granted Patent
Utility
US 6,321,942 · App. 09/341,336
Discharge device for flowable media using a thrust piston pump
Inventors:
Gerald Krampen, Karl-Heinz Fuchs, Hans Merk
Patented Case
View Patent ↗
Granted: Nov 27, 2001
Filed: Aug 10, 1999
Inventors
Gerald Krampen
Karl-Heinz Fuchs
Hans Merk
Assignee (at issue)
Ing. Erich Pfeiffer 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.