Granted Patent
Utility
US 4,251,341 · App. 06/048,970
Photoinitiators for UV-curable systems
Inventors:
Louis Felder, Rudolf Kirchmayr, Andreas Schmidt
Patented Case
View Patent ↗
Granted: Feb 17, 1981
Filed: Jun 15, 1979
Inventors
Louis Felder
Rudolf Kirchmayr
Andreas Schmidt
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.