Ex Parte RAZDAN et al - Page 1




                                  The opinion in support of the decision being entered today was not written                       
                                          for publication and is not binding precedent of the Board.                               

                                                                                                         Paper No. 18              

                                   UNITED STATES PATENT AND TRADEMARK OFFICE                                                       
                                                           ____________                                                            
                                         BEFORE THE BOARD OF PATENT APPEALS                                                        
                                                     AND INTERFERENCES                                                             
                                                           ____________                                                            
                                        Ex parte RAHUL RAZDAN, JAMES B. KELLER,                                                    
                                                   and RICHARD E. KESSLER                                                          
                                                           ____________                                                            
                                                       Appeal No. 2001-2477                                                        
                                                    Application No. 09/099,384                                                     
                                                           ____________                                                            
                                                             ON BRIEF                                                              
                                                           ____________                                                            
               Before HAIRSTON, BARRETT, and GROSS, Administrative Patent Judges.                                                  
               HAIRSTON, Administrative Patent Judge.                                                                              



                                                     DECISION ON APPEAL                                                            
                       This is an appeal from the final rejection of claims 1, 2 and 4 through 24.                                 
                       The disclosed invention relates to a method and apparatus for maintaining cache coherence                   
               in a multiprocessor system that has a plurality of cache and a main memory.                                         











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