Ex Parte Drost - Page 13

               Appeal 2007-2888                                                                             
               Application 11/017,602                                                                       
               barium sulfate (FF 16) – the limitation recited in claim 3.  This teaching is                
               cumulative to that of Yoerkie who also describes barium sulfate as a sound                   
               barrier (FF 13), but specifically for an aircraft – that same context in which               
               the claimed structure occurs.                                                                
                      In sum, we find that the Examiner has met the burden of establishing                  
               prima facie obvious for claim 7.  Claims 4, 5, 8, 10, 11, 12, 14, 16, and 18                 
               fall with claim 7 because separate arguments for their patentability were not                
               presented.  See 37 C.F.R. 41.37(c)(1)(vii).                                                  

                      Claims 3 and 9                                                                        
                      Claims 3 and 9 recite that the “mass barrier layer includes a vinyl                   
               which is mass loaded with a barium sulfate powder.”                                          
                      The Examiner finds that the Yoerkie and Allen teach “that the                         
               addition of a mass barrier of vinyl and barium sulfate optimize the sound                    
               reduction of a foam sound insulation” (Answer 7; see FF 11-13).  The                         
               Examiner concludes that it would have been obvious to persons of ordinary                    
               skill in the art “to further provide the insulated walls of Sloan” with a mass               
               barrier comprising barium sulfate as taught by Yoerkie and Allen because it                  
               would have been known to enhance the walls’ “sound deafening” properties                     
               (Answer 7).                                                                                  
                      Appellant contends that none “of the cited references  . . . disclose or              
               suggest a vinyl which is mass loaded with a barium sulfate power as a mass                   
               barrier layer and is mounted to a multitude of frame members” (Appeal Br.                    
               12).                                                                                         
                      We do not agree.  Yoerkie very specifically describes a blanket that                  
               includes a mass barrier “made from . . . vinyl which is mass loaded with                     

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