Granted Patent
Utility
US 5,019,285 · App. 07/471,167
Thioalkanoic acid substituted N,N-dialkylhydroxylamines and stabilized lubricant compositions
Inventors:
Samuel Evans, David Eliezer Chasan, Raymond Seltzer
Patented Case
View Patent ↗
Granted: May 28, 1991
Filed: Jan 26, 1990
Inventors
Samuel Evans
David Eliezer Chasan
Raymond Seltzer
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.