Granted Patent
Utility
US 6,793,784 · App. 09/707,058
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Inventors:
Otto Bach, David Francis Lupton, Hans Bohmeier, Ralf Heck
Patented Case
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Granted: Sep 21, 2004
Filed: Nov 6, 2000
Inventors
Otto Bach
David Francis Lupton
Hans Bohmeier
Ralf Heck
Assignee (at issue)
W.C. Heraeus GmbH & Co. KG
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.