Granted Patent
Utility
US 6,829,844 · App. 10/781,445
Evaporative desorption soil treatment apparatus and process
Inventors:
Patrick Richard Brady, John Brady
Patented Case
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Granted: Dec 14, 2004
Filed: Feb 18, 2004
Inventors
Patrick Richard Brady
John Brady
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.