Granted Patent
Utility
US 5,928,524 · App. 09/050,021
Oil-water separator
Inventor:
Eugene Charles Casola
Patented Case
View Patent ↗
Granted: Jul 27, 1999
Filed: Mar 30, 1998
Inventor
Eugene Charles Casola
Assignee (at issue)
Hoover Containment, 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.