Granted Patent
Utility
US 4,398,014 · App. 06/314,275
Sulfoxonium salts and their use as polymerization catalysts
Inventors:
George E. Green, Edward Irving, Bernard Peter Stark
Patented Case
View Patent ↗
Granted: Aug 9, 1983
Filed: Oct 23, 1981
Inventors
George E. Green
Edward Irving
Bernard Peter Stark
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.