Ex parte LITTECKE et al. - Page 5




          Appeal No. 1996-1699                                                        
          Application No. 08/077,681                                                  


          as shown by some objective teaching in the prior art or by                  
          knowledge generally available to                                            
          one of ordinary skill in the art that would have led that                   
          individual to combine the relevant teachings of the references              
          to arrive at the claimed invention.  See In re Fine, 837 F.2d               
          1071, 1074, 5 USPQ2d 1596, 1598 (Fed. Cir. 1988).  Rejections               
          based on                                                                    
          § 103 must rest on a factual basis with these facts being                   
          interpreted without hindsight reconstruction of the invention               
          from the prior art.  The examiner may not, because of doubt                 
          that the invention is patentable, resort to speculation,                    
          unfounded                                                                   




          assumption or hindsight reconstruction to supply deficiencies               
          in the factual basis for the rejection.  See In re Warner, 379              
          F.2d 1011, 1017, 154 USPQ 173, 178 (CCPA 1967), cert. denied,               
          389 U.S.                                                                    
          1057 (1968).  Our reviewing court has repeatedly cautioned                  
          against employing hindsight by using the appellants’                        
          disclosure                                                                  
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