Granted Patent
Utility
US 4,234,723 · App. 06/062,448
Nickel stabilizers for synthetic polymers
Inventors:
Michael Rasberger, Jean Rody, Paul Moser, Helmut Muller
Patented Case
View Patent ↗
Granted: Nov 18, 1980
Filed: Jul 30, 1979
Inventors
Michael Rasberger
Jean Rody
Paul Moser
Helmut 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.