Granted Patent
Utility
US 5,262,072 · App. 07/719,862
Lubricant composition
Inventors:
Hugo Camenzind, Rolf Schumacher
Patented Case
View Patent ↗
Granted: Nov 16, 1993
Filed: Jun 24, 1991
Inventors
Hugo Camenzind
Rolf Schumacher
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.