Process for the preparation of 4-(4-(4-(hydroxybiphenyl)-1-piperidinyl)-1-hydroxybutyl)-.alpha.,.alpha. -dimethylphenylacetic acid and phosphorylated derivatives

Granted: Nov 23, 1999 Filed: Mar 9, 1998

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.