Granted Patent
Utility
US 5,294,245 · App. 07/857,448
Melting metal particles and dispersing gas with vaned impeller
Inventors:
Ronald E. Gilbert, George S. Mordue
Patented Case
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Granted: Mar 15, 1994
Filed: Mar 25, 1992
Inventors
Ronald E. Gilbert
George S. Mordue
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.