Ex parte CAROL E. BASSETT - Page 6

          Appeal No. 95-4957                                                          
          Application 07/950,979                                                      

          As indicated by the cases just cited, the examiner has at                   
          least two responsibilities in setting forth a rejection under 35            
          U.S.C.  103.  First, the examiner must identify all the                    
          differences between the claimed invention and the teachings of              
          the prior art.  Second, the examiner must explain why the                   
          identified differences would have resulted from an obvious                  
          modification of the prior art.                                              

          With respect to independent claim 1, the examiner has                       
          read the claim on Kronstadt, and has concluded that the only                
          difference between claim 1 and Kronstadt is that Kronstadt does             
          not specifically teach using bidirectional latching transceivers            
          [answer, page 7].  The examiner asserts that the bidirectional              
          buffers of Kronstadt are well known equivalents of bidirectional            
          latching transceivers, and the examiner maintains that the                  
          substitution of one for the other would have been obvious to the            
          artisan.  Appellants argue that there are several other                     
          differences between claim 1 and Kronstadt which have been ignored           
          by the examiner.  We will consider each of these alleged                    
          differences in turn and the arguments of the examiner in support            
          of the conclusion of obviousness.                                           


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