Application of John J. Lainson

MARTIN, Judge.

This appeal is from a decision of the-Board of Appeals of the United States-Patent Office affirming the examiner’s rejection of claims 1 through 8 of appellant’s application, serial No. 676,850, filed' August 7, 1957, for Plastic Pipe as un-patentable over the prior art. No claims are allowed.

The application discloses a pipe made-up of two concentric layers of a plastic-material, such as polyethylene. The pipé-is described as comprising an inner, hollow, cylindrical core of translucent, unadulterated polyethylene “moleeularly bonded” to an outer cylindrical layer of'…