Granted Patent
Utility
US 4,921,912 · App. 07/231,665
Epoxy resin composition containing acrylic oligomer, amine and amine-terminated nitrile rubber
Inventors:
Hirotoshi Sagawa, Seiji Yamaguchi
Patented Case
View Patent ↗
Granted: May 1, 1990
Filed: Aug 1, 1988
Inventors
Hirotoshi Sagawa
Seiji Yamaguchi
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.