Granted Patent
Utility
US 4,302,573 · App. 06/147,682
Metal salt/amine complexes as epoxy resin catalytic curing agents
Inventors:
Friedrich Stockinger, Sameer H. Eldin, Friedrich Lohse
Patented Case
View Patent ↗
Granted: Nov 24, 1981
Filed: May 7, 1980
Inventors
Friedrich Stockinger
Sameer H. Eldin
Friedrich Lohse
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.