Ex parte CHOPIN et al. - Page 13




          Appeal No. 1998-2288                                                        
          Application 08/600,150                                                      


          and the Examples).  Wanmaker discloses a inorganic yellow-                  
          colored pigment useful in paints                                            
          having a specified formula which is not similar to formula (I)              
          in                                                                          
          claim 52 on appeal (col. 1, ll. 3-12; col. 2, ll. 24-47; and                
          col. 3, ll. 16-17).  Borrelli discloses a method for coloring               
          photochromic glasses including transition metal oxides and/or               
          rare earth metal oxides as inert glass colorants but with no                
          disclosure of colorants identical or similar to those of                    
          formula (I) in claim 52 on appeal (col. 1, ll. 6-7; col. 3,                 
          ll. 48-63; and Table 1 in col. 4).                                          
               From the foregoing analysis of the Joyce, Katz, Bryson,                
          Wanmaker and Borrelli reference disclosures, we determine that              
          the examiner has not presented any reasonable and convincing                
          factual basis for the conclusion “all of which would have                   
          given the artisan a reasonable expectation of success in                    
          obtaining suitable pigments from any mixed metal oxides”                    
          (Answer, page 7) since each reference only discloses specific               
          mixed metal oxides that function as pigments.  Alternatively,               
          we determine that the examiner has presented a sufficient                   
          factual basis for establishing that “it [sic, is] notoriously               

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