Ex parte STRETCH - Page 3




                 Appeal No. 97-3085                                                                                                                     
                 Application 08/236,835                                                                                                                 


                 to this Board from a final rejection,  and the fourth,             3                                                                   
                 Application 08/236,069, has matured into U.S. Patent No.                                                                               
                 5,577,963, issued on November 26, 1996.                                                                                                
                 The disclosures in the four applications are essentially                                                                               
                 identical and pertain to a torsion isolator having, among                                                                              
                 other                                                                                                                                  


                 features, (1) a spring disposed in a liquid pressure dampener                                                                          
                 and functioning as a piston, (2) a pivot stop associated with                                                                          
                 the spring, (3) a counterbalance associated with the spring,                                                                           
                 and (4) a control means associated with the spring for                                                                                 
                 momentarily providing hydraulic slack or delay in the                                                                                  
                 dampening operation.  The claims in the four applications are                                                                          
                 directed to an isolator having one or more of these features.                                                                          
                 As described by the appellant, “[i]n brief, the gist[s] of the                                                                         
                 four inventions in the ‘069, ‘809, ‘835 and ‘838 applications                                                                          
                 are respectively the pivot stop D, the counterbalance C, the                                                                           
                 momentary negation of dampening or hydraulic [slack] provided                                                                          

                          3Application 08/236,835 is the instant application,                                                                           
                 Application 08/236,809 is the subject of Appeal No. 97-2610                                                                            
                 and Application 08/236,838 is the subject of Appeal No. 97-                                                                            
                 2221.                                                                                                                                  
                                                                         -3-                                                                            





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