The broken line showing of a portion of a valve cap for a fuel cell is included for the purpose of illustrating environmental structure and forms no part of the claimed design.
The broken line showing of a portion of a valve cap for a fuel cell is included for the purpose of illustrating environmental structure and forms no part of the claimed design.
Number | Name | Date | Kind |
---|---|---|---|
D299950 | Canaan et al. | Feb 1989 | S |
5115944 | Nikolich | May 1992 | A |
6302297 | Richardson et al. | Oct 2001 | B1 |
6796478 | Shkolnikov et al. | Sep 2004 | B2 |
D590840 | Shea et al. | Apr 2009 | S |
Number | Date | Country | |
---|---|---|---|
Parent | 29306898 | Apr 2008 | US |
Child | 29334345 | US |