Ex parte POPAT - 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                                       publication and is not binding precedent of the Board                                           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. 14                                                          
                                   UNITED STATES PATENT AND TRADEMARK OFFICE                                                           
                                         BEFORE THE BOARD OF PATENT APPEALS                                                            
                                                     AND INTERFERENCES                                                                 
                                                    Ex parte KAUSHIK POPAT                                                             
                                                       Appeal No. 1998-3424                                                            
                                                       Application 08/315,792                                                          
                                                             ON BRIEF                                                                  
                   Before THOMAS, KRASS, and LALL, Administrative Patent Judges.                                                       
                   KRASS, Administrative Patent Judge.                                                                                 

                                                     DECISION ON APPEAL                                                                
                           This is a decision on appeal from the final rejection of claims 1, 5-17 and 20-22.                          
                   Claims 2-4, 18, 19 and 23 have been indicated by the examiner as being directed to                                  
                   patentable subject matter.                                                                                          
                           The invention is directed to first in-first out (FIFO) storage devices in general.  In                      
                   particular, the output transitions of the device are inhibited when the last cell of the                            
                   device is read or when the FIFO is erased.  This is said to be an improvement over the                              
                   prior art since transitions at the output of conventional devices consume considerable                              

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