Ex parte BASU et al. - Page 6




          Appeal No. 1997-3529                                       Page 6           
          Application No. 08/463,939                                                  

          been prima facie obvious to one of ordinary skill in the art                
          to modify the composition of Gro$ such that the herein claimed              
          composition would result from such modification.  Accordingly,              
          we reverse the rejection under 35 U.S.C. § 103.                             
                    § 103 Rejection over Norton, Neely and Brown                      
               Similar to the discussion regarding the Gro$ patent                    
          above, the applied Norton patent simply does not teach or                   
          suggest a diesel fuel composition containing an amount of                   
          dimethyl ether, methanol and water as herein claimed.  We note              
          that the examiner particularly refers to examples 1, 3, 4 and               
          5.1 of Norton (answer, page 4).  However, our review of those               
          examples reveals that the compositions of examples 1, 2 and 4               
          of Norton included only 5% dimethyl ether and example 5.1                   
          included 20% dimethyl ether, not 85-95% as herein claimed.                  
          Also, no water was described as being present in any of those               
          examples.  Examples 2 and 4 did not even include methanol, let              
          alone an amount thereof within the herein claimed range.                    
          Neely and Brown do not make-up for the deficiencies of Norton.              
          Neely is concerned with a priming fuel and does not teach that              
          priming fuel contains water in the amount herein claimed.                   
          Brown is concerned with high octane gasoline that includes a                








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