Granted Patent
Utility
US 4,876,300 · App. 07/139,408
Polyolefin compositions stabilized with long chain N,N-dialkylhydroxylamines
Inventors:
Raymond Seltzer, Ramanathan Ravichandran, Ambelal R. Patel
Patented Case
View Patent ↗
Granted: Oct 24, 1989
Filed: Dec 30, 1987
Inventors
Raymond Seltzer
Ramanathan Ravichandran
Ambelal R. Patel
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.