Granted Patent
Utility
US 6,606,956 · App. 10/090,495
Planter coulter apparatus with mechanical overload protection
Inventor:
Paul M. Paluch
Patented Case
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Granted: Aug 19, 2003
Filed: Mar 4, 2002
Inventor
Paul M. Paluch
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.