Ex Parte Nagaraj et al - Page 3



            Appeal No. 2006-1631                                                                      
            Application No. 10/317,759                                                                

            22...and as much as about 50 volume percent of the layer 22”                              
            (col. 5, lines 52-54).                                                                    
                  The examiner states that Spitsberg’s “50 volume percent of                          
            the layer...is considered to fall within the 40-60 [weight] %                             
            range for both the BSAS and the zirconia” of claim 35 (Answer,                            
            page 8).  In response, appellants point out the different unit                            
            proportions (volume % vs. weight %) and argue that the examiner                           
            “still does not address how Spitsberg et al. ‘814 teaches or                              
            suggests the claimed relative weight proportions of                                       
            CMAS-reactive material and ceramic thermal barrier coating                                
            material” (Reply Brief, page 8).                                                          
                  The examiner’s above quoted statement is speculative since                          
            it is not supported by any analysis or evidence that shows                                
            Spitberg’s 50 volume percent of BSAS falls within the claim 35                            
            range of “from about 40 to about 60 [weight] % of a CMAS-                                 
            reactive material” (i.e., BSAS). Thus, we find that the appeal                            
            is not ripe for resolution of all the issues on appeal before                             
            us.                                                                                       
                  In responding to this remand, the examiner must choose at                           
            least one of the following options:                                                       
                  Option No. 1: Provide the appeal record with evidence                               
                  disclosing properties such as densities of BSAS and YSZ                             
                                                 -3-                                                  




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