Granted Patent
Utility
US 4,832,709 · App. 06/485,553
Rotary separator with a bladeless intermediate portion
Inventor:
Lorant Nagyszalanczy
Patented Case
View Patent ↗
Granted: May 23, 1989
Filed: Apr 15, 1983
Inventor
Lorant Nagyszalanczy
Assignee (at issue)
AlliedSignal, Inc.
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.