Ex parte EITRHEIM et al. - Page 3




          Appeal No. 95-1816                                                           
          Application 07/859,347                                                       



               Rather than reiterate the arguments of Appellants and the               
          Examiner, reference is made to the briefs and answer for the2                                  
          respective details thereof.                                                  
                                       OPINION                                         
               We will not sustain the rejection of claims 17 through 24,              
          26 and 27 under 35 U.S.C. § 103.                                             
               The Examiner has failed to set forth a prima facie case.                
          It is the burden of the Examiner to establish why one having                 
          ordinary skill in the art would have been led to the claimed                 
          invention by the express teachings or suggestions found in the               
          prior art, or by implications contained in such teachings or                 
          suggestions.  In re Sernaker, 702 F.2d 989, 995, 217 USPQ 1, 6               
          (Fed. Cir. 1983).  "Additionally, when determining obviousness,              
          the claimed invention should be considered as a whole; there is              
          no legally recognizable 'heart' of the invention."  Para-Ordnance            
          Mfg. v. SGS Importers Int’l, Inc., 73 F.3d 1085, 1087, 37 USPQ2d             




               2Appellants filed an appeal brief on July 25, 1994.  We will refer to   
          this appeal brief as simply the brief.  Appellants filed a reply appeal brief
          on October 7, 1994.  We will refer to this reply appeal brief as the reply   
          brief.  The Examiner responded to the reply brief with a letter, mailed      
          October 18, 1994, stating that the reply brief has been entered and          
          considered but no further response by the Examiner is deemed necessary.      
                                           3                                           





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