U.S. patent number D540,578 [Application Number D/237,925] was granted by the patent office on 2007-04-17 for backrest. Invention is credited to Su-Ming Chen.
United States Patent | D540,578 |
Chen | April 17, 2007 |
Inventors: | Chen; Su-Ming (Ta Liao Hsiang, Kaohsiung, TW) |
---|---|
Appl. No.: | D/237,925 |
Filed: | September 9, 2005 |
Current U.S. Class: | D6/716.4; D6/366 |
Current International Class: | 0606 |
Field of Search: | ;D6/333-336,364,365,366,369,367,374,379,380,500-502 ;297/300.2,411.2,411.27,411.36,452.46,452.56,452.63,452.64 |
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