Granted Patent
Utility
US 6,149,733 · App. 09/117,618
Apparatus and method for descaling a workpiece with a liquid jet
Inventors:
Gerlinde Djumlija, Karl Kremmaier, Johann Oberhumer, Andreas Schweighofer, Herwig Wrulich
Patented Case
View Patent ↗
Granted: Nov 21, 2000
Filed: Oct 5, 1998
Inventors
Gerlinde Djumlija
Karl Kremmaier
Johann Oberhumer
Andreas Schweighofer
Herwig Wrulich
Assignee (at issue)
Voest-Alpine Industrieanlagenbau 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.