Substituted imidazo[1,5-a]pyridine derivatives and other substituted bicyclic derivatives and their use as aromatase inhibitors

Granted: Dec 26, 1989 Filed: Nov 13, 1987

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.