Court of Customs and Patent Appeals June 10, 1971, Patent Appeal 8471 (Application of John R. Lewis)

BALDWIN, Judge.

Lewis appeals from the decision of the Patent Office Board of Appeals sustaining the rejection of all the claims in his application

1

as obvious in view of the prior art under 35 USC 103.

THE INVENTION

The claims on appeal define a process for preparing cellular,

2

cross-linked

3

polypropylene having a uniform,

i. e.