Ex parte VAN ROSSEN - Page 4




          Appeal No. 1998-3001                                                        
          Application No. 08/318,645                                                  


               We reverse each of the examiner’s rejections of                        
          appellant’s claims under 35 U.S.C.  103.                                   


               Independent claim 1 is drawn to a dust bag comprising,                 
          inter alia, a filter bag having two wall portions, and a                    
          protective layer of an air permeable nonwoven web, the                      
          protective layer being laid on the inner surface of a wall                  
          portion without bonding, wherein the protective layer is in                 
          the form of a protective strip being narrower than the wall                 
          portions with longitudinal ends positioned and welded between               
          at least the longitudinally opposing interconnected edges of                
          the wall portions.                                                          


               Independent claim 6 sets forth a method for producing a                
          dust bag comprising, inter alia, providing a first web of air-              
          permeable material and a second web of air-permeable material               
          narrower than the first web, and cutting off a portion of the               
          first web with the second web positioned therein, and sealing               
          the cut off portion at both ends, with the second web being                 
          held at both sealed ends of the cut off portion.                            


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