Ex parte REXROAD et al. - Page 3




          Appeal No. 96-3543                                                          
          Application No. 08/153,623                                                  


               The rejections are explained in the Paper No. 12 (the                  
          final rejection).                                                           


                                       OPINION                                        
                         New Rejection Entered By The Board                           
               We are mindful that the appellants are free to claim                   
          their invention in broad terms, and that they are entitled to               
          the broadest reasonable interpretation of the claim language.               
          However, because a patentee has the right to exclude others                 
          from making, using and selling the invention covered by the                 
          patent, the public must be apprised of exactly what the patent              
          covers, so that those who would approach the area                           
          circumscribed by the claims of a patent may more readily and                
          accurately determine the boundaries of protection involved and              
          evaluate the possibility of infringement and dominance.  It is              
          to this that the second paragraph of 35 U.S.C. § 112 is                     
          directed (see In re Hammack, 427 F.2d 1378, 166 USPQ 204 (CCPA              
          1970)), and with regard to which we find the claims not to be               
          in compliance.                                                              
               Therefore, pursuant to our authority under 37 C.F.R.                   


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