Granted Patent
Utility
US 4,339,571 · App. 06/145,407
One-component systems based on crystalline epoxide resins
Inventors:
Ferdinand Gutekunst, Hans D. Lehmann, Rolf Schmid
Patented Case
View Patent ↗
Granted: Jul 13, 1982
Filed: May 1, 1980
Inventors
Ferdinand Gutekunst
Hans D. Lehmann
Rolf Schmid
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.