Ex Parte No Data - Page 11

                Appeal 2007-0694                                                                              
                Reexamination Control 90/006,433                                                              
                Patent 5,428,933                                                                              
                Guarriello Figure 9, depicted above, demonstrates that two forms may be                       
                placed adjacent to each other via an interior separator 290 such that concrete                
                poured in one form is permitted to communicate to an adjacent form.  (Id. at                  
                col. 6, ll. 3-11).                                                                            

                22) The upper and lower faces of Guarriello’s side walls have locking                         
                members in the form of projections and recesses.  (Figs. 8 and 9).                            

                23) Guarriello’s projections and recesses form two alternating rows.  For                     
                example, Guarriello 9 depicts alternating rows of projections (ribs) 270 and                  
                alternating rows of recesses (channels) 276.                                                  

                24) Guarriello’s projections and recesses are offset such that a recess on                    
                one row on the top edge is opposed to a projection on the bottom edge.                        
                (Guarriello, col. 4, l. 67 to col. 5, l. 9).                                                  

                25) Guarriello’s blocks are formed such that they may be interconnected                       
                in a bidirectional manner.  (Guarriello, col. 5, ll. 9-14 and 45-48).                         

                             2.    Horobin, U.S. Patent 4,894,969                                             
                26) Horobin ‘969 is directed to an insulating block form for use in the                       
                construction of concrete wall structures.  (Horobin, Abstract).                               

                27) Horobin ‘969 states that its blocks are made from expandable styrene.                     
                (Id.).                                                                                        


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