Pharmaceutical compositions with central depressant and antipsychotic activity having a butyrophenone derivative which is substituted in the 4-position and a C-(2-benzofuranyl)-piperidine or C-(2-benzofuranyl)-tetrahydro-pyridine

Granted: Aug 18, 1981 Filed: Nov 14, 1979

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.