Ex Parte TANGREN - Page 9



          Appeal No. 2000-1890                                                         
          Application 08/828,297                                                       

          location of the second torsion node, however, can be determined              
          for a given suspension.  Claims 13-15 require that the mass                  
          balancing structures (tabs) be placed at a specific point on the             
          suspension related to the determined location of the second                  
          torsion node.  This is a structural requirement which the                    
          examiner dismisses based on pure speculation.  There is no                   
          evidence within Hinlein that the tabs can be structurally located            
          as recited in claims 13-15.  A rejection based on anticipation               
          cannot be established based upon conjecture and speculation.                 
          Therefore, we do not sustain the rejection of claims 13-15.                  
          We now consider the rejections of the claims under 35                        
          U.S.C. § 103.  In rejecting claims under 35 U.S.C. § 103, it is              
          incumbent upon the examiner to establish a factual basis to                  
          support the legal conclusion of obviousness.  See In re Fine, 837            
          F.2d 1071, 1073, 5 USPQ2d 1596, 1598 (Fed. Cir. 1988).  In so                
          doing, the examiner is expected to make the factual                          
          determinations set forth in Graham v. John Deere Co., 383 U.S. 1,            
          17, 148 USPQ 459, 467 (1966), and to provide a reason why one                
          having ordinary skill in the pertinent art would have been led to            
          modify the prior art or to combine prior art references to arrive            
          at the claimed invention.  Such reason must stem from some                   
          teaching, suggestion or implication in the prior art as a whole              
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