Granted Patent
Utility
US 4,722,800 · App. 06/868,948
Oil-water separator
Inventor:
Gregory G. Aymong
Patented Case
View Patent ↗
Granted: Feb 2, 1988
Filed: May 30, 1986
Inventor
Gregory G. Aymong
Assignee (at issue)
Highland Tank and Manufacturing 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.