Ex parte UNRATH et al. - Page 12




                 Appeal No. 1999-1332                                                                                                                   
                 Application No. 08/591,857                                                                                                             



                 either directly or indirectly from claim 1, we have reviewed                                                                           
                 the additional references applied by the examiner in these                                                                             
                 rejections.  While these additional references may disclose                                                                            
                 certain features required by the claims against which they                                                                             
                 were cited, they do not make up for the basic deficiency in                                                                            
                 the examiner’s combination of Allan and Wasielewski, which is                                                                          
                 the linchpin of all the standing rejections.  Accordingly, the                                                                         
                 standing rejections of claims 2-14 also cannot be sustained.                                                                           
                                                                      Remand                                                                            
                          This case is remanded to the examiner for consideration                                                                       
                 of the following matter.                                                                                                               
                          Claim 1 does not require any particular material, or                                                                          
                 thickness, or mechanical strength, for the flat sheets of the                                                                          
                 case.  Claim 1 requires, inter alia, that “said sheets  alone                                    [2]                                   
                 [do] not hav[e] enough mechanical strength to provide a                                                                                
                 cassette that is dimensionally stable, but hav[e] in                                                                                   
                 combination with the adhesive layers and filter pack                                                                                   


                          2According to appellants’ disclosure (specification, page                                                                     
                 3, lines 1-3), the sheets of the present invention “can                                                                                
                 consist of any pliable sheeting, for example wood, metal,                                                                              
                 cardboard and/or plastic.”                                                                                                             
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