Ex Parte Shimomura et al - Page 1



                   The opinion in support of the decision being entered                
                        today was not written for publication and                      
                          is not binding precedent of the Board.                       
                      UNITED STATES PATENT AND TRADEMARK OFFICE                        
                                    _____________                                      
                          BEFORE THE BOARD OF PATENT APPEALS                           
                                  AND INTERFERENCES                                    
                                    _____________                                      
                      Ex parte MANABU SHIMOMURA and HIROTO ITOI                        
                                    _____________                                      
                                 Appeal No. 2005-0805                                  
                              Application No. 10/234,097                               
                                    ______________                                     
                                       ON BRIEF                                        
                                   _______________                                     
          Before KIMLIN, PAK and TIMM, Administrative Patent Judges.                   
          KIMLIN, Administrative Patent Judge.                                         
                                  DECISION ON APPEAL                                   

               This is an appeal from the final rejection of claims 1-5.               
               Claim 1 is illustrative:                                                
               1.     A mass spectrometer for analyzing a sample gas,                  
               comprising:                                                             
                    means for producing an ion of the sample gas                       
               through collision of the gas with an electron beam,                     
               said producing means having an electrode made of                        
               stainless steel baked at a temperature in a range                       
               of 200oC to 700oC in an air atmosphere, said electrode                  
               made of stainless steel being reconditioned by baking                   
               at a temperature in a range of 200oC to 700oC, and                      







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