Application of Eslie B. Hummer

RICH, Judge.

This is an appeal from the decision of the Patent Office Board of Appeals affirming the rejection of the only remaining claims in appellant’s application which are as follows:

“22. A hollow sectional plaster board partition each section composed of two spaced paper sheathed face plaster boards of equal width and laterally offset, and a spacer at each lateral edge comprising a relatively narrow filler strip of paper sheathed plaster board between and adhesively secured to each face board and having its outer edge disposed midway between the offset edges of the face boards, the…