Granted Patent
Utility
US 6,769,980 · App. 10/334,026
Crop residue flow guide with flow-through capability for a rotary crop residue spreader of an agricultural combine
Inventors:
Joshua J. Wolters, Robert A. Matousek, James R. Lucas
Patented Case
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Granted: Aug 3, 2004
Filed: Dec 30, 2002
Inventors
Joshua J. Wolters
Robert A. Matousek
James R. Lucas
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.