Ex parte SINGH et al. - Page 20




          Appeal No. 95-0865                                                           
          Application 08/08/007,950                                                    

               The decision of the examiner rejecting claims 6-19 and 22               
          based on Bisacchi, Slusarchyk and Searcey is reversed.                       

                    2.   The examiner's rejection based on Hagberg I                   
               The examiner rejected claims 6-13 and 25 as being                       
          unpatentable under 35 U.S.C. § 103 over Hagberg I.                           
               With reference to Method of Preparation L and Example 10,               
          Hagberg I differs from the subject matter of claim 6 in that                 
          Hagberg I does not describe the reaction of a cyclobutane with a             
          purine.                                                                      
               Thus, it can be said that Hagberg I does not describe at                
          least one of applicants' starting materials, i.e., the                       
          cyclobutane.  According to the examiner, the failure of Hagberg I            
          to describe the cyclobutane starting materials is of no moment.              
          In support of his position, the examiner cites and relies on In              
          re Durden, 763 F.2d 1406, 226 USPQ 359 (Fed. Cir. 1985).  More to            
          the point, in our opinion, is In re Ochiai, 71 F.3d 1565, 37                 
          USPQ2d 1127 (Fed. Cir. 1995).  The mere fact that a compound with            
          a mesyl group has been reacted with a purine does not per se                 
          establish that it would have been obvious to react a cyclobutane             
          with a mesyl group with a purine.  Based on Hagberg I alone, we              
          discern no reason, motivation or suggestion to use a cyclobutane             



                                        - 20 -                                         





Page:  Previous  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  Next 

Last modified: November 3, 2007