Application of Joseph R. Riden, Jr., and James P. Flavin

ALMOND, Judge.

This is an appeal from the affirmance by the Board of Appeals of the final rejection of appellants’ patent application. 1 All of the claims have been rejected as unpatentable over the prior art.

The invention described in the specification relates to halogenated ethenyl sulfones and to their use as pesticides, primarily as fungicides. Broadly, the formula of the sulfones is

in which R is an alkyl group and at least two of X, Y and Z are fluorine, chlorine or bromine. If only two of X, Y and Z are fluorine, chlorine or bromine, the third member is hydrogen. The compounds are said…