Ex parte CRANDALL - 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                                for publication and is not binding precedent of the Board.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.  32                  


                                UNITED STATES PATENT AND TRADEMARK OFFICE                                                     
                                                       ____________                                                           

                                     BEFORE THE BOARD OF PATENT APPEALS                                                       
                                                  AND INTERFERENCES                                                           
                                                       ____________                                                           

              Ex parte MICHAEL D. CRANDALL                                                                                    
                                                       ____________                                                           

                                                Appeal No. 1999-1951                                                          
                                             Application No. 08/797,062                                                       
                                                       ____________                                                           

                                              HEARD: JANUARY 17, 2002                                                         
                                                       ____________                                                           

              Before LIEBERMAN, KRATZ, and DELMENDO, Administrative Patent Judges.                                            

              LIEBERMAN, Administrative Patent Judge.                                                                         

                                                 DECISION ON APPEAL                                                           

                      This is an appeal under 35 U.S.C. § 134 from the rejection of the examiner                              

              refusing to allow claims 1 through 40, which are all the claims pending in this application.                    

              THE INVENTION                                                                                                   

              The invention is directed to a retroreflective article comprising a layer of                                    

              retroreflective elements at least partially embedded in a binder layer.  The binder layer                       

              comprises a polyurethane having specific molecular weight and end group unsaturation                            

              requirements.  Additional limitations are described in the following illustrative claims.                       






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