Anti-syphon device
Description
Items shown in broken lines are for illustrative purposes only and form no part of the claimed design.
Claims
I claim the ornamental design for an anti-syphon device, as shown and described.
Referenced Cited
U.S. Patent Documents
2236802 | April 1941 | McDonald |
2891565 | June 1959 | Mackey |
3425438 | February 1969 | Suffron |
3822717 | July 1974 | Thorne-Symmons |
3951297 | April 20, 1976 | Martin |
D254266 | February 19, 1980 | Tableriou |
4326641 | April 27, 1982 | Wilken |
4343410 | August 10, 1982 | Lenda |
4438862 | March 27, 1984 | Bona |
4650087 | March 17, 1987 | White |
5025946 | June 25, 1991 | Butkovich et al. |
D342957 | January 4, 1994 | George |
5462079 | October 31, 1995 | Loschelder et al. |
5476185 | December 19, 1995 | Jimerson |
D587643 | March 3, 2009 | Slagel |
D588055 | March 10, 2009 | Moya |
7721902 | May 25, 2010 | Grote et al. |
20070228041 | October 4, 2007 | Wholey |
20090134159 | May 28, 2009 | Wholey et al. |
20100043890 | February 25, 2010 | Weigen |
Patent History
Patent number: D637698
Type: Grant
Filed: May 19, 2009
Date of Patent: May 10, 2011
Assignee: Quality Machine of Iowa, Inc. (Audubon, IA)
Inventor: Timothy W. Greene (Brooklyn Park, MN)
Primary Examiner: T. Chase Nelson
Assistant Examiner: Eric L Goodman
Attorney: Patterson Thuente Christensen Pedersen P.A.
Application Number: 29/337,323
Type: Grant
Filed: May 19, 2009
Date of Patent: May 10, 2011
Assignee: Quality Machine of Iowa, Inc. (Audubon, IA)
Inventor: Timothy W. Greene (Brooklyn Park, MN)
Primary Examiner: T. Chase Nelson
Assistant Examiner: Eric L Goodman
Attorney: Patterson Thuente Christensen Pedersen P.A.
Application Number: 29/337,323
Classifications
Current U.S. Class:
Trap (D23/268)