Granted Patent
Utility
US 4,587,311 · App. 06/602,260
Novel imidazolides and their use as curing agents for polyepoxide compounds
Inventors:
Rolf Schmid, Helmut Zondler, Michael Fischer, Werner Stauffer
Patented Case
View Patent ↗
Granted: May 6, 1986
Filed: Apr 20, 1984
Inventors
Rolf Schmid
Helmut Zondler
Michael Fischer
Werner Stauffer
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.