Granted Patent
Utility
US 5,259,461 · App. 07/819,284
Cultivator sweep
Inventor:
James Cochrane
Patented Case
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Granted: Nov 9, 1993
Filed: Jan 13, 1992
Inventor
James Cochrane
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.