Granted Patent
Utility
US 5,405,544 · App. 08/100,803
Ashless antiwear-antioxidant lubricating oil additive
Inventors:
Carl K. Esche, Jr., Julian H. Dancy, Doris Love
Patented Case
View Patent ↗
Granted: Apr 11, 1995
Filed: Aug 2, 1993
Inventors
Carl K. Esche, Jr.
Julian H. Dancy
Doris Love
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.