U.S. patent number D640,241 [Application Number D/350,229] was granted by the patent office on 2011-06-21 for sound amplification ear device with ear phone. Invention is credited to Victor Kingsun Wai.
United States Patent | D640,241 |
Wai | June 21, 2011 |
Inventors: | Wai; Victor Kingsun (Sui Lam NT, HK) |
---|---|
Appl. No.: | D/350,229 |
Filed: | November 12, 2009 |
Current U.S. Class: | D14/223 |
Current International Class: | 1401 |
Field of Search: | ;D14/205,206,223,240,142,192 ;181/129,130,135 ;379/430,431,433.01 ;455/575.2,575.3,569.2 ;191/12.4,12R ;381/182,370,374,384 |
4942617 | July 1990 | Boylan |
5832098 | November 1998 | Chen |
6254025 | July 2001 | Liao |
6434249 | August 2002 | Wei |
6438248 | August 2002 | Kamimura et al. |
D470833 | February 2003 | Rath et al. |
6658130 | December 2003 | Huang |
6712304 | March 2004 | Taylor |
6731956 | May 2004 | Hanna et al. |
D494570 | August 2004 | Ma |
D502171 | February 2005 | Tang et al. |
6866219 | March 2005 | Wei |
D509210 | September 2005 | Skulley et al. |
D509823 | September 2005 | Han et al. |
7086512 | August 2006 | Shack et al. |
D566107 | April 2008 | Bowling |
7372974 | May 2008 | Yanagishita et al. |
D582899 | December 2008 | Wai |
D583362 | December 2008 | Hsu et al. |
D591274 | April 2009 | Khubani |
D600682 | September 2009 | Wai |
D603377 | November 2009 | Chung |
D607440 | January 2010 | Yamakawa et al. |
D609695 | February 2010 | Cigliano et al. |
7664540 | February 2010 | Tsai |
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