| Number | Date | Country | Kind |
|---|---|---|---|
| 000424536-0 | Nov 2005 | EM | regional |
| Number | Name | Date | Kind |
|---|---|---|---|
| 1273696 | Vanhoof | Jul 1918 | A |
| 3313509 | Lockert | Apr 1967 | A |
| D425402 | Welborn et al. | May 2000 | S |
| D521852 | Hall et al. | May 2006 | S |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 29258760 | Apr 2006 | US |
| Child | 29298478 | US |