Ex parte MELIA et al. - Page 5




                 Appeal No. 1997-1737                                                                                     Page 5                        
                 Application No. 08/330,168                                                                                                             


                 then ascertained that the combined teachings of the three                                                                              
                 patents did not arrive at the claimed invention since the                                                                              
                 claimed "height" of the bushing  as set forth in the claims2                                                                              
                 under appeal (e.g., greater than about 0.2 inch and less than                                                                          
                 about 0.65 inch) was not taught.  The examiner has not cited                                                                           
                 any evidence as to why it would have been obvious at the time                                                                          
                 the invention was made to a person having ordinary skill in                                                                            
                 the art to have modified the applied prior art to arrive at                                                                            
                 the claimed invention.  Instead, the examiner found that the                                                                           
                 appellants did not disclose any new or unexpected results due                                                                          
                 to the height difference between the rejected claims and the                                                                           
                 applied prior art and then determined (answer, p. 5) that it                                                                           
                 would have been obvious to make the bushing in a smaller or                                                                            
                 larger size.   However, it is well established that the mere3                                                                                                                
                 fact that a difference between the teachings of the prior art                                                                          
                 and the claimed subject matter does not provide any new or                                                                             

                          2The "height" of the bushing is measured from the top                                                                         
                 surface of the orifice plate to the bottom surface of the                                                                              
                 flange.                                                                                                                                
                          3We note that the examiner never determined that the                                                                          
                 claimed "height" would have been obvious at the time the                                                                               
                 invention was made to a person having ordinary skill in the                                                                            
                 art.                                                                                                                                   







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