Granted Patent
Utility
US 6,688,448 · App. 10/111,720
Device for shifting in a mechanical shifting element between a first shifting state and at least a second shifting state
Inventors:
Andreas Giefer, Jorg Meyer, Reimund Borgerding, Ludger Rake
Patented Case
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Granted: Feb 10, 2004
Filed: Apr 25, 2002
Inventors
Andreas Giefer
Jorg Meyer
Reimund Borgerding
Ludger Rake
Assignee (at issue)
ZF Lemförder Metallwaren AG
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.