N-substituted trifluoromethylphenyltetrahydropyridines, process for the preparation thereof, intermediates in said process and pharmaceutical compositions containing them

Granted: Jan 25, 1994 Filed: May 23, 1991

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.