Ex Parte Lylykangas et al - Page 2

               Appeal 2007-3994                                                                             
               Application 10/072,906                                                                       

                      Claim 27 illustrates Appellants’ invention of a method of                             
               manufacturing a metal reactor cell, and is representative of the claims on                   
               appeal:                                                                                      
                      27.  A method of manufacturing a metal reactor cell that has                          
               overlapping corrugated sheets and a housing, the method comprising the                       
               steps of preoxidizing the overlapping corrugated sheets, and after the                       
               preoxidizing step joining the preoxidized sheets simultaneously to each other                
               and to at least part of the housing by resistance welding.                                   
                      The Examiner relies upon the evidence in these references:                            
               Cairns    GB 1 546 097          May 16, 1979                                                 
               Chapman    US 4,331,631          May 25, 1982                                                
               Kono     US 5,403,558          Apr.   4, 1995                                                
               Usui     US 5,620,666          Apr. 15, 1997                                                 
               Matsumoto    US 6,288,008 B1          Sep. 11, 2001                                          
                      Appellants request review of the following grounds of rejection                       
               advanced on appeal1 (Br. 2-3):                                                               
               claims 27, 30 and 31 under 35 U.S.C. § 103(a) as unpatentable over Usui in                   
               view of Kono (Answer 42);                                                                    
               claims 27, 30 and 31 under 35 U.S.C. § 103(a) as unpatentable over                           
               Matsumoto in view of Kono (id. 5);                                                           
               claims 28 and 29 under 35 U.S.C. § 103(a) as unpatentable over Usui or                       
               Matsumoto in view of Kono as applied to claim 27, further in view of                         
               Chapman and Cairns (id. 5); and                                                              
               claims 27 through 30 under 35 U.S.C. § 112, first paragraph, as failing to                   
               comply with the written description requirement (id. 6).                                     



                                                                                                           
               1  The ground of rejection under 35 U.S.C. § 112, second paragraph, is                       
               withdrawn by the Examiner (Answer 3).                                                        
               2  The Examiner modified the first and second grounds of rejection under                     
               35 U.S.C. § 103(a) by withdrawing Chapman (Answer 2-3).                                      
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