Granted Patent
Utility
US 6,300,282 · App. 09/365,283
Technique for reducing nitrogen leaching in soils and improving potato crop yield by application of surfactants to crop root zone
Inventor:
Eric Thomas Cooley
Patented Case
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Granted: Oct 9, 2001
Filed: Jul 30, 1999
Inventor
Eric Thomas Cooley
Assignee (at issue)
Platte Chemical Company, a Nebraska corporation
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.