Granted Patent
Utility
US 5,409,118 · App. 08/306,354
Open air density separator and method
Inventors:
Joseph B. Bielagus, Richard J. Gobel
Patented Case
View Patent ↗
Granted: Apr 25, 1995
Filed: Sep 15, 1994
Inventors
Joseph B. Bielagus
Richard J. Gobel
Assignee (at issue)
Beloit Technologies, 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.