Granted Patent
Utility
US 3,930,810 · App. 05/493,377
Additives for petroleum distillates
Inventor:
Marion J. Gattuso
Patented Case
View Patent ↗
Granted: Jan 6, 1976
Filed: Jul 31, 1974
Inventor
Marion J. Gattuso
Assignee (at issue)
Universal Oil Products 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.