Ex parte RATZEL et al. - Page 3




          Appeal No. 97-3703                                         Page 3           
          Application No. 08/110,349                                                  


          Scott et al. (Scott)          2,973,678                Mar.  7,             
          1961                                                                        
          Giordano                      3,260,145                Jul. 12,             
          1966                                                                        
          Ottaviano                          4,237,776                Dec.            
          9, 1980                                                                     
          Armington      et al. (Armington) 5,123,889                 Jun.            
          23, 1992                                                                    
          Osmera                        477,252             Oct. 15, 1969             
          (Swiss patent document)3                                                    

               The following rejections are before us for review.                     
          1.   Claims 1 through 4, 9, 10 and 16 stand rejected under 35               
          U.S.C. § 103 as being unpatentable over Walker in view of                   
          Scott and Osmera.                                                           
          2.   Claims 6 through 8, 11 through 14, 17 and 18 stand                     
          rejected under 35 U.S.C. § 103 as being unpatentable over                   
          Walker in view of Scott and Osmera, as applied above, and                   
          further in view of the appellants' admitted prior art shown in              
          Figures 6 through 7D2 of the application.                                   
          3.   Claim 26 stands rejected under 35 U.S.C. § 103 as being                
          unpatentable over Ottaviano in view of Scott and Giordano.                  




               3An English language translation of this reference, prepared by the    
          Patent and Trademark Office (PTO), is appended hereto.                      







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