Granted Patent
Utility
US 4,755,325 · App. 06/904,632
Process for emulsifying oil and water mixture
Inventor:
Ian T. Osgerby
Patented Case
View Patent ↗
Granted: Jul 5, 1988
Filed: Sep 8, 1986
Inventor
Ian T. Osgerby
Assignee (at issue)
Columbia Chase Corporation
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.