Ex parte VAN DEN BROEK et al. - Page 4




          Appeal No. 1997-4442                                                         
          Application 08/353,040                                                       

               Claims 2-6 stand rejected under 35 U.S.C.  103(a) as                   
          being unpatentable over Drabkin and Sahagen.  This is a new                  
          ground of rejection added in the Examiner's Answer.                          
               We refer to the Final Rejection (Paper No. 11), the                     
          Examiner's Answer (Paper No. 16) (pages referred to as                       
          "EA__"), and the Examiner's Supplemental Answer (Paper No. 18)               
          for a statement of the Examiner's position and to the Brief                  
          (Paper No. 15) (pages referred to as "Br__"), the Reply Brief                
          (Paper No. 17) (pages referred to as "RBr__"), and the                       
          Supplemental Reply Brief (Paper No. 19) for Appellants'                      
          arguments thereagainst.                                                      
                                       OPINION                                         
               Independent claim 6 and dependent claim 3 are argued                    
          separately.  Thus, claim 2 stands or falls together with                     
          claim 6 and claims 4 and 5 stand or fall together with                       
          claim 3.                                                                     

          Anticipation - Dewit                                                         
               De Wit discloses (e.g., figures 1 and 4) a temperature                  
          independent resistor circuit comprising a first resistor R1                  
          with a positive TCR and a second resistor R  having a negative               
                                                      2                                
          TCR.  When the resistances are coupled together, the                         
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