Granted Patent
Utility
US 5,110,323 · App. 07/697,702
Process for the return of recovered particulate solids by a cyclone separator to a vessel
Inventor:
Dalip Singh Soni
Patented Case
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Granted: May 5, 1992
Filed: May 9, 1991
Inventor
Dalip Singh Soni
Assignee (at issue)
Stone & Webster Engineering Corp.
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.