Granted Patent
Utility
US 4,339,567 · App. 06/237,184
Photopolymerization by means of sulphoxonium salts
Inventors:
George E. Green, Edward Irving
Patented Case
View Patent ↗
Granted: Jul 13, 1982
Filed: Feb 23, 1981
Inventors
George E. Green
Edward Irving
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.