Acetylenes disubstituted with a heteroaromatic group and a 2-substituted chromanyl, thiochromanyl or 1, 2, 3, 4, -tetrahydroquinolinyl group having retinoid-like activity

Granted: Oct 14, 1997 Filed: Oct 29, 1996

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.