Granted Patent
Utility
US 4,292,953 · App. 05/948,682
Pollutant-free low temperature slurry combustion process utilizing the super-critical state
Inventor:
Norman L. Dickinson
Patented Case
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Granted: Oct 6, 1981
Filed: Oct 5, 1978
Inventor
Norman L. Dickinson
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.