Granted Patent
Utility
US 4,367,304 · App. 06/203,939
Novel organic antimony-sulfur compounds and their use as stabilizers for chlorine-containing thermoplasts
Inventors:
Klaus-Peter Michaelis, Wolfgang Wehner, Holger Andreas, Horst Muller
Patented Case
View Patent ↗
Granted: Jan 4, 1983
Filed: Nov 4, 1980
Inventors
Klaus-Peter Michaelis
Wolfgang Wehner
Holger Andreas
Horst Muller
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.