The lines are shown broken-away at the far end to indicate indeterminate length.
 
                 Patent Grant
 Patent Grant
                     D579283
 D579283
                    
    
    
The lines are shown broken-away at the far end to indicate indeterminate length.
| Number | Name | Date | Kind | 
|---|---|---|---|
| D298905 | Petherick et al. | Dec 1988 | S | 
| 4869055 | Mickelson | Sep 1989 | A | 
| D349634 | Skinner et al. | Aug 1994 | S | 
| D358535 | Skinner | May 1995 | S | 
| 5424128 | Fogle | Jun 1995 | A | 
| D364079 | Skinner | Nov 1995 | S | 
| 5463815 | Fogle | Nov 1995 | A | 
| D365734 | Skinner | Jan 1996 | S | 
| D370395 | Skinner et al. | Jun 1996 | S | 
| D376078 | Skinner | Dec 1996 | S | 
| D376079 | Skinner | Dec 1996 | S | 
| D376516 | Skinner | Dec 1996 | S | 
| D379052 | Skinner | May 1997 | S | 
| D379418 | Skinner | May 1997 | S | 
| D379419 | Skinner | May 1997 | S | 
| D417597 | Sutliff et al. | Dec 1999 | S | 
| 6191072 | Duffy | Feb 2001 | B1 | 
| 6560878 | Skinner et al. | May 2003 | B2 | 
| 6668462 | Skinner et al. | Dec 2003 | B2 | 
| D496840 | Iacona | Oct 2004 | S | 
| 7257898 | Iacona | Aug 2007 | B2 |