Granted Patent
Utility
US 4,701,273 · App. 06/906,627
Lubricant compositions containing antioxidants, amine phosphates and 4- (5-) methyl-1-[di-(2-ethylhexyl) aminomethyl]-benzotriazole
Inventors:
Arthur Albert Brady, Ulrich Kristen, Hermann F. Angerer, Franz Regenass
Patented Case
View Patent ↗
Granted: Oct 20, 1987
Filed: Sep 10, 1986
Inventors
Arthur Albert Brady
Ulrich Kristen
Hermann F. Angerer
Franz Regenass
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.