Granted Patent
Utility
US 5,268,113 · App. 07/933,599
Lubricant composition
Inventor:
Samuel Evans
Patented Case
View Patent ↗
Granted: Dec 7, 1993
Filed: Aug 20, 1992
Inventor
Samuel Evans
Assignee (at issue)
Ciba-Geigy
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.