Granted Patent
Utility
US 5,030,698 · App. 07/471,574
Composition of epoxy resin, butadiene-acrylonitrile copolymer and segmented copolyester, copolyamide or copolyesteramide
Inventors:
Rolf Mulhaupt, Werner Rufenacht
Patented Case
View Patent ↗
Granted: Jul 9, 1991
Filed: Jan 29, 1990
Inventors
Rolf Mulhaupt
Werner Rufenacht
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.