Granted Patent
Utility
US 4,482,464 · App. 06/465,941
Hydrocarbyl-substituted mono- and bis-succinimide having polyamine chain linked hydroxyacyl radicals and mineral oil compositions containing same
Inventors:
Thomas J. Karol, Raymond C. Schlicht, Harold S. Magaha
Patented Case
View Patent ↗
Granted: Nov 13, 1984
Filed: Feb 14, 1983
Inventors
Thomas J. Karol
Raymond C. Schlicht
Harold S. Magaha
Assignee (at issue)
Texaco 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.