Granted Patent
Utility
US 6,802,459 · App. 10/373,245
Device for preparing the walls of a mold for molding or shaping to make them ready for the next molding cycle
Inventors:
Hans-Dieter Renkl, Douwe Marten Kok, Thomas Junker, Karl-Heinz Keim
Patented Case
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Granted: Oct 12, 2004
Filed: Feb 24, 2003
Inventors
Hans-Dieter Renkl
Douwe Marten Kok
Thomas Junker
Karl-Heinz Keim
Assignee (at issue)
Acheson Industries, Inc.
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.