Granted Patent
Utility
US 5,162,086 · App. 07/704,166
Dispersant additive and lubricating oil composition containing same
Inventors:
Cyril A. Migdal, Maria M. Kapuscinski, Theodore E. Nalesnik
Patented Case
View Patent ↗
Granted: Nov 10, 1992
Filed: May 22, 1991
Inventors
Cyril A. Migdal
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.