Application of John G. Miller

MARTIN, Judge.

This is an appeal from a decision of the Patent Office Board of Appeals affirming the rejection by the Primary Examiner of claim 16 of appellant’s application, serial No. 643,282, filed March 1, 1957, entitled FORMING PLASTIC CONTAINERS.

The appealed claim reads:

“16. In a method of making a blown organic plastic article, the steps of extruding through an orifice a hollow plastic tube having a substantially constant wall thickness, intermittently applying a chilling medium to portions only of the exterior surface of said hollow tube immediately adjacent the orifice as the tube is…