Granted Patent
Utility
US 4,438,038 · App. 06/378,022
Process for the production of oil-soluble metal salts
Inventor:
Joseph Petronella
Patented Case
View Patent ↗
Granted: Mar 20, 1984
Filed: May 13, 1982
Inventor
Joseph Petronella
Assignee (at issue)
Nuodex 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.