Step board
Description
Claims
The ornamental design for a step board, as shown.
Referenced Cited
U.S. Patent Documents
2723131 | November 1955 | McChesney |
D210087 | February 1968 | Higgins |
6572128 | June 3, 2003 | Graf |
6857648 | February 22, 2005 | Mehmet |
D579987 | November 4, 2008 | Hong |
7581742 | September 1, 2009 | Chiu et al. |
D624136 | September 21, 2010 | Chen |
7793956 | September 14, 2010 | Hsu |
D630282 | January 4, 2011 | Ebanks |
20080088109 | April 17, 2008 | Chiu et al. |
Patent History
Patent number: D665465
Type: Grant
Filed: Oct 18, 2011
Date of Patent: Aug 14, 2012
Inventor: Sheng-Tsai Hsieh (New Taipei)
Primary Examiner: Cynthia M Chin
Attorney: Nikolai & Mersereau, P.A.
Application Number: 29/404,273
Type: Grant
Filed: Oct 18, 2011
Date of Patent: Aug 14, 2012
Inventor: Sheng-Tsai Hsieh (New Taipei)
Primary Examiner: Cynthia M Chin
Attorney: Nikolai & Mersereau, P.A.
Application Number: 29/404,273
Classifications