Granted Patent
Utility
US 4,392,930 · App. 06/393,894
Photopolymerizable resins
Inventors:
Roderick D. Hathaway, Edward Irving, John S. Waterhouse
Patented Case
View Patent ↗
Granted: Jul 12, 1983
Filed: Jun 30, 1982
Inventors
Roderick D. Hathaway
Edward Irving
John S. Waterhouse
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.