Ex parte LAFONTAINE et al. - Page 6




          Appeal No. 1998-1623                                                        
          Application 08/433,625                                                      



               Claims 21, 22, 31, 32 and 34 through 37 stand rejected                 
          under 35 U.S.C. § 112, second paragraph.  The Examiner argues               
          that the   term “dissociate” is defined by the Appellants as a              
          process by which the chemical composition breaks up into                    
          simpler constituents.  The Examiner argues that Appellants'                 
          invention does not break up into simpler constituents.                      
               In the reply brief, Appellants agree that the definition               
          of dissociate is “to subject to a process by which a chemical               
          composition breaks into simpler constituents.”  Appellants                  
          argue that this is indeed exactly what happens in the instant               
          application.  Appellants point to Figure 1 where it can be                  
          seen that eutectic at 84.4 percent lead and 15.6 percent gold               
          is comprised of the intermetallic compound AuPb  as one                     
                                                         2                            
          component and elemental lead as the second component.  This                 
          indeed is a gold/lead eutectic, with one component being lead               
          and the other component being PbAu .  Appellants point out                  
                                            2                                         
          that the AuPb  dissociates into its constituents of gold and                
                       2                                                              
          lead which provides for the gold to diffuse.                                
               Upon our determination of whether the claims set out and               
          circumscribe the particular area with a reasonable degree of                

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