Granted Patent
Utility
US 4,941,985 · App. 07/444,224
Dispersant/antioxidant VII lubricant additive
Inventors:
Nicholas Benfaremo, Maria M. Kapuscinski, Theodore E. Nalesnik
Patented Case
View Patent ↗
Granted: Jul 17, 1990
Filed: Dec 1, 1989
Inventors
Nicholas Benfaremo
Maria M. Kapuscinski
Theodore E. Nalesnik
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.