Sledge hammer head
Description
Claims
The ornamental design for a sledge hammer head, as shown and described.
Referenced Cited
U.S. Patent Documents
3128131 | April 1964 | Bianchini |
D257826 | January 13, 1981 | Jones |
D264931 | June 15, 1982 | Jones |
D266141 | September 14, 1982 | Nannen |
4683784 | August 4, 1987 | Lamont |
5248002 | September 28, 1993 | Williams |
D350889 | September 27, 1994 | Frierman |
5758552 | June 2, 1998 | Myers et al. |
D490679 | June 1, 2004 | Hung |
D519814 | May 2, 2006 | Hung |
D521842 | May 30, 2006 | Hung |
D530582 | October 24, 2006 | Sleiman |
D532272 | November 21, 2006 | Chen |
D546142 | July 10, 2007 | Christensen et al. |
D564323 | March 18, 2008 | Zubiaurre Alberdi et al. |
Patent History
Patent number: D574690
Type: Grant
Filed: Aug 8, 2007
Date of Patent: Aug 12, 2008
Inventor: Yung-Shou Chen (Taichung Hsien)
Primary Examiner: Philip S Hyder
Attorney: Pai Patent & Trademark LAW FIRM
Application Number: 29/283,196
Type: Grant
Filed: Aug 8, 2007
Date of Patent: Aug 12, 2008
Inventor: Yung-Shou Chen (Taichung Hsien)
Primary Examiner: Philip S Hyder
Attorney: Pai Patent & Trademark LAW FIRM
Application Number: 29/283,196
Classifications
Current U.S. Class:
D8/78;
D8/77