Ex Parte CALLIS et al - Page 3




          Appeal No. 96-3431                                                          
          Application No. 08/307,535                                                  


               We refer to the briefs and to the answer for a complete                
          exposition of the opposing viewpoints expressed by the appellants           
          and the examiner concerning the above noted rejections.                     
                                       OPINION                                        
               For the reasons which follow, we will sustain the above                
          noted rejection.                                                            
               The appellants argue that "the following limitations in the            
          rejected claims are missing from the cited references and render            
          the claimed subject matter unobvious over those cited references:           
          1) a fuel composition for two-cycle engines, and 2) a major                 
          amount of fuel boiling in the gasoline range" (brief, page 11).             
               This argument is clearly incorrect.  Miller explicitly                 
          discloses a fuel composition for two-cycle engines comprising a             
          major amount of fuel boiling in the gasoline range as required by           
          the appealed claims (e.g., see lines 13 through 69 in column 7).            
          Indeed, patentee's fuel composition corresponds to the                      
          composition defined by the independent claims on appeal in all              
          respects except that the former does not include the here claimed           














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