In Re Marden

HATFIELD, Associate Judge.

This is an appeal from the decision of the Board of Appeals affirming the decision of the Primary Examiner rejecting claims 31 to 46, inclusive, in appellants’ application for a patent for an alleged invention relating to a “mass of thorium, which -is substantially pure, coherent and homogeneous,” wire, filaments, and electrodes formed of ductile thorium.

Claims 32, 38, 42, and 46 are illustrative. They read:

“32. A mass of thorium which is substantially, pure, coherent and homogeneous.”

“38. A wire formed of ductile thorium.”

“42. A filament of ductile thorium.”

“46. An…