Granted Patent
Utility
US 4,348,505 · App. 06/210,890
Adducts from amines and di- and polyepoxides
Inventors:
Marianne Di Benedetto, John Gannon
Patented Case
View Patent ↗
Granted: Sep 7, 1982
Filed: Nov 28, 1980
Inventors
Marianne Di Benedetto
John Gannon
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.