Number | Name | Date | Kind |
---|---|---|---|
2794663 | Grodt et al. | Jun 1957 | A |
3334933 | Ehlers | Aug 1967 | A |
4234220 | Finch et al. | Nov 1980 | A |
4290281 | Knaack et al. | Sep 1981 | A |
4307904 | Daus | Dec 1981 | A |
4437692 | Halopoff | Mar 1984 | A |
4613175 | Nelson | Sep 1986 | A |
4630750 | Hughes | Dec 1986 | A |
4643469 | Johnston et al. | Feb 1987 | A |
4655487 | Korn et al. | Apr 1987 | A |
4883294 | Goodspeed | Nov 1989 | A |
4911486 | Anderson | Mar 1990 | A |
4977763 | Sewell | Dec 1990 | A |
5076078 | Weger, Jr. | Dec 1991 | A |
5235830 | Benge | Aug 1993 | A |
5308126 | Weger, Jr. et al. | May 1994 | A |
5477710 | Stefanutti | Dec 1995 | A |
5875948 | Sadler | Mar 1999 | A |
6351975 | Valdes | Mar 2002 | B1 |
6439008 | Keil | Aug 2002 | B1 |
6494064 | Pena | Dec 2002 | B1 |
6578398 | Behunin | Jun 2003 | B2 |
Entry |
---|
International Search Report from International Application No. PCT/US01/50422, dated Apr. 19, 2002. |
Number | Date | Country | |
---|---|---|---|
60/244472 | Oct 2000 | US |
Number | Date | Country | |
---|---|---|---|
Parent | 10/001345 | Oct 2001 | US |
Child | 10/606986 | US |