Granted Patent
Utility
US 4,668,727 · App. 06/800,626
Ester substituted benzylhydroxylamines and stabilized polyolefin compositions
Inventors:
Ramanathan Ravichandran, Thomas E. Snead
Patented Case
View Patent ↗
Granted: May 26, 1987
Filed: Nov 21, 1985
Inventors
Ramanathan Ravichandran
Thomas E. Snead
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.