Granted Patent
Utility
US 6,773,367 · App. 10/195,723
Belt drive two speed shift mechanism
Inventors:
Nicholas J. Laufenberg, Peter J. Ungs
Patented Case
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Granted: Aug 10, 2004
Filed: Jul 15, 2002
Inventors
Nicholas J. Laufenberg
Peter J. Ungs
Assignee (at issue)
Case GmbH
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.