Ex parte CHANG et al. - Page 9




          Appeal No. 1997-1173                                                        
          Application No. 08/428,775                                                  


          applied prior art references results in a failure to establish              
          a prima facie case of obviousness.  Therefore, the examiner’s               
          rejections of claims 2 through 4 under 35 U.S.C. § 103(a) are               
          reversed.                                                                   






























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