Granted Patent
Utility
US 5,294,002 · App. 08/103,540
Air separator with spiral staves
Inventor:
Darcy Moses
Patented Case
View Patent ↗
Granted: Mar 15, 1994
Filed: Aug 9, 1993
Inventor
Darcy Moses
Assignee (at issue)
CROWN IRON WORKS COMPANY LLC
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.