Ex parte CHASE - Page 5




          Appeal No. 97-2243                                                          
          Application 08/222,584                                                      


               Rejections based on 35 U.S.C. § 103 must rest on a factual             
          basis.  In re Warner, 379 F.2d 1011, 1017, 154 USPQ 173, 177-78             
          (CCPA 1967).  In making such a rejection, the examiner has the              
          initial duty of supplying the requisite factual basis and may               
          not, because of doubts that the invention is patentable, resort             
          to speculation, unfounded assumptions or hindsight reconstruction           
          to supply deficiencies in the factual basis.  Id.                           
               In the present case, Trower and Jaschek do not justify the             
          examiner’s conclusion that it would have been obvious to one of             
          ordinary skill in the art to laminate Trower’s intermediate layer           
          14 and outer wall 12 to one another.  In short, the semi-rigid,             
          self-supporting pool wall defined by Trower’s intermediate layer            
          14 and outer wall 12 and the highly flexible coated fabrics                 
          disclosed by Jaschek have little, if any, meaningful relevance to           
          one another.  The only suggestion to combine these two references           
          in the manner proposed by the examiner stems from impermissible             
          hindsight knowledge derived from the appellant’s own disclosure.            
          Moreover, this deficiency in the basic Trower-Jaschek combination           
          is not cured by the German reference which discloses a pool wall            
          laminate consisting of a polyurethane foam core sandwiched                  
          between polypropylene liners.                                               



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