Granted Patent
Utility
US 4,886,887 · App. 06/917,346
Process for the preparation of indolines
Inventors:
Beat Michael Aebli, Claude Gremmelmaier
Patented Case
View Patent ↗
Granted: Dec 12, 1989
Filed: Oct 9, 1986
Inventors
Beat Michael Aebli
Claude Gremmelmaier
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.