U.S. patent number D503,251 [Application Number D/191,240] was granted by the patent office on 2005-03-22 for vacuum cleaner. This patent grant is currently assigned to Sharper Image Corporation. Invention is credited to Tristan M. Christianson.
United States Patent | D503,251 |
Christianson | March 22, 2005 |
Inventors: | Christianson; Tristan M. (San Francisco, CA) |
---|---|
Assignee: | Sharper Image Corporation (San
Francisco, CA) |
Appl. No.: | D/191,240 |
Filed: | October 3, 2003 |
Current U.S. Class: | D32/21 |
Current International Class: | 1505 |
Field of Search: | ;D32/21-24,31-33 ;15/320-323,347,350-354,361,366,383,410,412,415.1,416-422.1,327.1-327.7,319,340.1 ;55/DIG.3 ;134/18,21 ;901/1 ;700/245 ;318/568.12 |
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D375592 | November 1996 | Ljunggren |
D474312 | May 2003 | Stephens et al. |
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