Granted Patent
Utility
US 4,690,759 · App. 06/918,062
Centrifugal and impingement oil separator
Inventor:
Zoltan A. Mandy
Patented Case
View Patent ↗
Granted: Sep 1, 1987
Filed: Oct 14, 1986
Inventor
Zoltan A. Mandy
Assignee (at issue)
Frick Company
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.