Granted Patent
Utility
US 5,474,694 · App. 07/947,595
Lubricating oil composition
Inventors:
Shailaja M. Shirodkar, Cyril A. Migdal
Patented Case
View Patent ↗
Granted: Dec 12, 1995
Filed: Sep 21, 1992
Inventors
Shailaja M. Shirodkar
Cyril A. Migdal
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.