MILLER, Judge.
This appeal is from a decision of the Patent and Trademark Office (PTO) Board of Appeals, affirming the rejection of claims 8-15 in application serial No. 229,350, filed February 25, 1972, for "Method of Extruding Thermoplastic Films and Articles Made Therefrom." We affirm.
The Invention
Paperboard, coated with wax or polymeric resins such as polyethylene, is used as container material for liquid food products. A problem in...
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