Vent pipe using ultraviolet light for purification of discharge gases
Claims
The ornamental design for a vent pipe using ultraviolet light for the purification of discharge gases, as shown and described.
3082677 | March 1963 | Pease |
D254803 | April 22, 1980 | Rusth et al. |
D262235 | December 8, 1981 | Hamilton |
D265340 | July 6, 1982 | Kemp |
D269809 | July 19, 1983 | Chadd |
4442643 | April 17, 1984 | Stadheim |
4461066 | July 24, 1984 | Peterson |
5390451 | February 21, 1995 | Kopp et al. |
D379501 | May 27, 1997 | Airosa et al. |
D386577 | November 18, 1997 | Haydock et al. |
5746653 | May 5, 1998 | Palmer et al. |
5749780 | May 12, 1998 | Harder et al. |
D414257 | September 21, 1999 | Estrada |
Type: Grant
Filed: May 12, 2008
Date of Patent: Jun 29, 2010
Inventor: Roy E. Underwood (Young Harris, GA)
Primary Examiner: T. Chase Nelson
Assistant Examiner: David G Muller
Attorney: Harry I. Leon
Application Number: 29/307,782