Granted Patent
Utility
US 6,217,135 · App. 09/280,874
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Inventors:
Klaus Spies, Ekkehard Oertgen
Patented Case
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Granted: Apr 17, 2001
Filed: Mar 29, 1999
Inventors
Klaus Spies
Ekkehard Oertgen
Assignee (at issue)
Diehl Remscheid 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.