Ex parte RAHM et al. - Page 5




                 Appeal No. 1997-1464                                                                                                                   
                 Application No. 08/235,542                                                                                                             

                 liquid mixture defined by, for example, independent claim 19                                                                           
                 distinguishes over the liquid mixture described in Comparative                                                                         
                 Experiment B of the Paersch patent.  In this regard, we point                                                                          
                 out that the liquid mixture of Comparative Experiment B                                                                                
                 contains 25 grams of molasses which equals about 43% of the                                                                            
                 total mixture and 33 grams of bitumen emulsion which equals                                                                            
                 about 57% of the total mixture.   In light of the foregoing,1                                                                              
                 the examiner and the appellants should consider whether the                                                                            
                 disclosure of Comparative Experiment B in the Paersch                                                                                  
                 reference satisfies all of the requirements of at least                                                                                
                 appealed claim 19.                                                                                                                     
                 Summary                                                                                                                                
                          The decision of the examiner is reversed.                                                                                     
                                                                    REVERSED                                                                            


                 Edward C. Kimlin                )                                                                                                      
                          Administrative Patent Judge     )                                                                                             
                                   )                                                                                                                    

                          1This last mentioned point raises the issue of whether the                                                                    
                 “about 40%” recitation in the last clause of appealed claim 19                                                                         
                 concerns the recited “hydrocarbon-based solution” (which                                                                               
                 corresponds to the above mentioned bitumen emulsion of                                                                                 
                 Comparative Experiment B) or the recited “hydrocarbon                                                                                  
                 portion”.  The examiner and the appellants should address and                                                                          
                 resolve this issue in any further prosecution that may occur.                                                                          
                                                                           5                                                                            





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