Ex parte HARTMAN et al. - Page 9




          Appeal No. 1996-1735                                                        
          Application No. 08/184,526                                                  


          Accordingly, we reverse the examiner’s decision rejecting                   
          claim 3 under 35 U.S.C. § 102(b).                                           
               We turn next to the examiner’s rejection of claims 4                   
          through 9 under 35 U.S.C. § 103 as unpatentable over the                    
          disclosure of the Weiss reference.  Appellants do not argue                 
          that the limitations recited in claims 5 through 9 impart                   
          patentability over the Weiss reference.  What appellants argue              
          is that the Weiss reference would not have rendered a                       
          polyamide curative having “the ratio of amine group                         
          equivalents to acid group equivalents...from about 1.20:1.00                
          to about 1.80:1.00” recited in claim 4 obvious to one of                    
          ordinary skill in the art.  However, as indicated supra, we                 
          find that the Weiss reference describes a polyamide curative                
          having the amine group equivalents to acid group equivalents                
          ratio of 2.00:1.00, which is very close to the claimed ratio                
          of “about 1.80:1.00".  We further find that the polyamide                   
          curative described in the Weiss reference can be produced by a              
          condensation reaction between imide or anhydride with an                    
          excess amine, “namely little above the stoichiometrically                   
          calculated quantity up to a very substantial excess, i.e. up                
          to a 100 molar percent excess.”  See Answer, page 3, together               
                                          9                                           





Page:  Previous  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  Next 

Last modified: November 3, 2007