YAMADA et al. - Page 25





          any inferences.                                                            
               At first glance, it would appear that this case is analogous          
          to Sletzinger v. Lincoln, 410, F.2d 808, 161 USPQ 725 (CCPA                
          1969), where a determination was made that a period of almost two          
          weeks (from June 27 to July 9) was not toolong for inventors to            
          review a draft application. In Sletzinger, however, three                  
          inventors reviewed the draft application. Here, there was only             
          one. More importantly, in Sletzinger, evidence was presented to            
          excuse the inference that the amount of time to review the draft           
          application was excessive. Specifically, Judge Rich, speaking              
          for the CCPA stated:                                                       
               That the total period of review by the inventors was not              
               unreasonable in view of the length of the application and             
               the nature of the technical subject matter appears clear              
               from the affidavit of the Patent Department Section Head ...          
               (Emphasis added). 410 F.2d at 812, 161 USPQ at 728.                   
               In Sletzinger, the Patent Department Section Head provided            
          testimony regarding how long it would take a single inventor to            
          review an application. The Patent Department Section Head                  
          additionally explained that the inventors were aware of the                
          importance of careful review. The Patent Department Section Head           
          also stated that the application was lengthy and the subject               
          matter technically difficult.                                              
               In contrast, Chern has failed to direct us to evidence that           
          would account for the approximately one month period of time               
          duringwhich Wen-Foo Chern had the draft application in his                 
          Possession. Based on the record, there is no demonstration that            
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