Granted Patent
Utility
US 4,663,064 · App. 06/845,723
Dibaisic acid lubricating oil dispersant and viton seal additives
Inventors:
Theodore E. Nalesnik, Carmen M. Cusano
Patented Case
View Patent ↗
Granted: May 5, 1987
Filed: Mar 28, 1986
Inventors
Theodore E. Nalesnik
Carmen M. Cusano
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.