Ex parte BILKADI - Page 13




          Appeal No. 94-3812                                                          
          Application 07/857,701                                                      
          describes coating a metal substrate (column 8, lines 49                     
          through 57) with a curable monomer such as bisacrylamide                    
          (column 6, lines 9 through 52) and silica gel (column 5, lines              
          19 through 22).  Aoyama coats a metal such as copper, iron,                 
          chromium, nickel, stainless steel or aluminum (column 4, lines              
          63 through 67) with a blend of bisacrylamide column 3, lines                
          33 through 65) and an inorganic filler such as silica (column               
          4, lines 38 through 47) in amounts which include the amounts                
          claimed by appellant.                                                       
               We agree with the examiner that the subject matter of                  
          claim 1 would have been prima facie obvious to a person of                  
          ordinary skill in the art at the time appellant's invention                 
          was made. Appellant has argued that using the claimed level                 
          (33.3 to 66.7 weight percent) of colloidal silica is neither                
          taught nor suggested by the prior art.  However, the examiner               
          has performed a calculation using the disclosure of Aoyama                  
          which establishes that by following Aoyama's express                        
          disclosure, the claimed amounts are obtained.  While appellant              
          has had abundant opportunities to address the examiner's                    
          calculations he has declined to do so.  Accordingly, we accept              
          the examiner's calculations as accurate and agree with his                  
          conclusion based on his calculation.                                        
                                         13                                           





Page:  Previous  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  Next 

Last modified: November 3, 2007