Granted Patent
Utility
US 4,474,952 · App. 06/417,748
Process for the preparation of metal complexes of isoindolinazines
Inventor:
Abul Iqbal
Patented Case
View Patent ↗
Granted: Oct 2, 1984
Filed: Sep 13, 1982
Inventor
Abul Iqbal
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.