Ex parte CREIXELL - Page 5




          Appeal No. 97-2902                                                          
          Application No. 08/170,332                                                  


          be interpreted by one possessing the ordinary level of skill                
          in the pertinent art.  Id.         The appellant has explained              
          in the specification the dynamics of the forces which act upon              
          the class of vehicles to which his invention is directed, as                
          well as the problem and the solution that his invention                     
          provides.  We agree with the examiner that this does not                    
          explicitly include an explanation of the effect of the height               
          and weight of the rider upon the center of gravity of the                   
          “vehicle and rider assembly.”  However, the guidance we have                
          received from our reviewing court, stated above, does not                   
          limit us to looking to the specification for an understanding               
          of the words of the claims.  It directs that the language of                
          the claims be interpreted from the perspective of one of                    
          ordinary skill in the art.  In our view, the appellant has                  
          established that one of ordinary skill in the art would have                
          known that the position of positive and negative acceleration               
          in a horizontal direction is that which is shown in Exhibit 4,              
          and would have possessed sufficient knowledge and skill to                  
          determine the height of the center of gravity of the vehicle                
          and rider assembly when in such a position.  Of particular                  
          interest are the explanations regarding the negligible effect               
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