Appeal No. 2005-1378 10
Application No. 09/227,242
discussed in U.S. Patent No. 5,580,475 issued 3 December 1996, entitled
“Flux-Cored Wire for Gas Shield Arc Welding with Low Fume”....
It is also known in the field of flux-core weld wires to add carbon to the
flux-core composition to compensate for any degradation in weld deposit
mechanical properties otherwise associated with the reduction of the carbon
content in the steel sheath.
Moreover, Nagarajan’s low carbon metal-core weld wires are not said to suffer from the
fume problem described in the affidavit and the specification.
Thus, based on the totality of record, including due consideration of the appellants’
arguments and evidence, we determine that the preponderance of evidence weighs most
heavily in favor of obviousness within the meaning of 35 U.S.C. § 103. Hence, we affirm
the examiner’s decision rejecting all the appealed claims under 35 U.S.C. § 103.
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