Ex parte HALVORSON et al. - Page 2




          Appeal No. 2001-1541                                       Page 2           
          Application No. 09/094,297                                                  


               We REVERSE.                                                            


                                     BACKGROUND                                       
               The appellants' invention relates to train control                     
          systems and more particularly to automatic and remote sensing               
          of the passage of rail switches (specification, p. 1).  A copy              
          of the claims under appeal is set forth in the appendix to the              
          appellants' brief.                                                          


               The prior art references of record relied upon by the                  
          examiner in rejecting the appealed claims are:                              
          Dierker, Jr. et al.                5,152,544                Oct.            
          6, 1992                                                                     
          (Dierker)                                                                   
          Kull et al.                   5,740,547                Apr. 14,             
          1998                                                                        
          (Kull)                                                                      
          Codina et al.                 5,880,681                March 9,             
          1999                                                                        
          (Codina)                                                                    



               Claims 1, 3 and 9 stand rejected under 35 U.S.C. § 102(b)              
          as being anticipated by or, in the alternative, under 35                    
          U.S.C.                                                                      








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