Appeal No. 96-1741 Application 08/160,111 two inputs to Chu’s ALU, and is not used as the third operand input to an ALU. The examiner has not indicated why the mask in Chu would have been modified to correspond to the third multibit digital input signal when the Chu ALU is replaced by the Vassiliadis ALU. The examiner also has not explained why a specific mask value as recited in claim 14 cannot be patented. The examiner has simply stated that any mask value would have been obvious to the artisan. Although the examiner’s conclusion may be correct in theory, it is not supported by any evidence on this record, and appellants have made a point of arguing the patentability of this specific feature. Since appellants have specifically argued the limitations of claim 14, and since the examiner’s general conclusion of obviousness is not supported by the record, we do not sustain the Section 103 rejection of claims 14 and 53. Claims 17, 20 and 23 recite a specific mask signal in a manner similar to claim 14. The examiner’s rejection of these claims is supported in the same manner as the rejection of claim 8. Therefore, we also do not sustain the Section 103 rejection of these claims for the same reasons just discussed. Claims 56, 59 and 62 are grouped with these claims. Claims 13Page: Previous 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 NextLast modified: November 3, 2007