Ex parte BIRMINGHAM - Page 4




                    Appeal No. 94-0786                                                                                                                                     
                    Application 07/861,332                                                                                                                                 



                    Staff                                             2,453,044                               Nov.  2, 1948                                                
                    Robota                                            3,544,644                               Dec.  1, 1970                                                




                              The appealed claims stand rejected under 35 USC § 103 as                                                                                     
                    unpatentable over Kreps in view of Staff ; Robota ‘089 in view of               2                                                                      
                    Staff; or Oga in view of Staff.                                                                                                                        
                              We reverse the rejections as applied to appealed method                                                                                      
                    claims 10 through 12.  We affirm the rejections as applied                                                                                             
                    against appealed ?system? claim 13.                                                                                                                    
                              This is the second appeal of claimed subject matter which is                                                                                 
                    directed to a method and a ?system? for cracking dicyclopen-                                                                                           
                    tadiene to produce cyclopentadiene monomer.  In comparison with                                                                                        
                    the claims previously considered by the Board in the decision                                                                                          
                    entered January 22, 1996 (Paper No. 20), the appealed method                                                                                           
                    claims now require, inter alia, the introduction into a body of                                                                                        
                    heat transfer fluid of ?monomer and heat transfer fluid free?                                                                                          
                    molten dicyclopentadiene.  This claim limitation, as argued by                                                                                         
                    appellant, further distinguishes the claimed process from the                                                                                          
                    specific systems such as the Kreps Figure 1 embodiment wherein                                                                                         


                              2    The examiner relies on the Canadian patent to Staff.                                                                                    
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