Granted Patent
Utility
US 6,688,432 · App. 10/058,691
Piston compressor
Inventors:
Jens Erik Nissen, Christian Svendsen, Frank Holm Iversen, Klaus Reinwand, Preben Bjerre
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Jan 28, 2002
Inventors
Jens Erik Nissen
Christian Svendsen
Frank Holm Iversen
Klaus Reinwand
Preben Bjerre
Assignee (at issue)
Danfoss Compressors 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.