Granted Patent
Utility
US 4,280,946 · App. 06/099,952
Crosslinkable bis-imidyl derivatives
Inventors:
Roland Darms, Vratislav Kvita, Gerd Greber
Patented Case
View Patent ↗
Granted: Jul 28, 1981
Filed: Dec 3, 1979
Inventors
Roland Darms
Vratislav Kvita
Gerd Greber
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.