In re Smith

The rejection of the single claim here involved by the respective tribunals of the Patent Office was predicated solely upon the Richardson et al. article, from which the majority quotes all matter that seems in anywise pertinent here.

I have been unable to divest myself of the impression that the Richardson et al. article, fairly construed, teaches those skilled in the art (to say nothing of the unskilled), that substantially pure gamma, gamma-dipyridyl has no practical value as an insecticide, even though it may have been found to possess some slight toxic qualities. I note particularly the…