Immunostimulating 7-deaza-7-oxa- and 7-deaza-7-oxo-analogs of 8-substituted-guanine-9-(1'-beta-D-aldoglycosidyl) derivatives and methods of treating test animals

Granted: Nov 24, 1992 Filed: May 24, 1988

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.