Granted Patent
Utility
US 5,120,792 · App. 07/670,257
Tertiary amide antioxidants
Inventor:
Vincent J. Gatto
Patented Case
View Patent ↗
Granted: Jun 9, 1992
Filed: Mar 15, 1991
Inventor
Vincent J. Gatto
Assignee (at issue)
Ethyl 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.