Granted Patent
Utility
US 5,658,712 · App. 08/552,643
(Meth)acrylates containing urethane groups
Inventors:
Bettina Steinmann, Jean-Pierre Wolf, Adrian Schulthess, Max Hunziker
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Nov 3, 1995
Inventors
Bettina Steinmann
Jean-Pierre Wolf
Adrian Schulthess
Max Hunziker
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.