Ex parte RAO - Page 11




            Appeal No: 1997-1820                                                                         
            Application No: 08/313,941                                                                   
            low phosphorus content carbon was commercially available at                                  
            the time of the invention.  While Hassler teaches that low or                                
            no phosphate content carbon was commercially available, it                                   
            does not teach that low or no phosphorus content carbon was                                  
            commercially available.  Note that Richardson teaches that                                   
            phosphate ions are not toxic in catalysts.                                                   
                  The prior art does not contain a suggestion to modify                                  
            Miller by acid washing the carbon support portion of the                                     
            catalyst.  While one skilled in the art would have been                                      
            motivated to select a low phosphorus content carbon for use in                               
            manufacturing a catalyst, the examiner has not provided                                      
            sufficient evidence to show that low or no phosphorus content                                
            carbon was commercially available at the time of the                                         
            invention.                                                                                   
                  Accordingly, the examiner's rejection of claims 1-13, 17-                              
            20, and 24 is REVERSED.                                                                      
                  The examiner rejects claims 21 and 23 as being                                         
            unpatentable over Miller, Richardson, Goleva, Hassler and                                    







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