Granted Patent
Utility
US 4,478,708 · App. 06/540,359
Method and apparatus for separating fluidized solid particles suspended in gasiform material
Inventor:
Carl D. Farnsworth
Patented Case
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Granted: Oct 23, 1984
Filed: Oct 11, 1983
Inventor
Carl D. Farnsworth
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.