U.S. patent number D691,583 [Application Number D/445,367] was granted by the patent office on 2013-10-15 for headphone. This patent grant is currently assigned to Sony Corporation. The grantee listed for this patent is Sony Corporation. Invention is credited to Sohei Kitayama.
United States Patent | D691,583 |
Kitayama | October 15, 2013 |
Inventors: | Kitayama; Sohei (Tokyo, JP) | ||||||||||
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Applicant: |
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Assignee: | Sony Corporation (Tokyo,
JP) |
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Appl. No.: | D/445,367 | ||||||||||
Filed: | February 11, 2013 |
Application Number | Filing Date | Patent Number | Issue Date | ||
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29421592 | Aug 20, 2012 | D677243 | |||
29371971 | Mar 9, 2012 | D666990 | |||
29395889 | Apr 18, 2012 | ||||
29371443 | Feb 28, 2011 | D656125 | |||
Aug 26, 2010 [JP] | D2010-020572 | |||
Aug 27, 2010 [CN] | 2010 3 0508542 | |||
Aug 27, 2010 [CN] | 2010 3 0508544 | |||
Oct 19, 2011 [JP] | D2011-024000 | |||
Current U.S. Class: | D14/205 |
Current International Class: | 1401 |
Field of Search: | ;D14/205,206,223 ;D29/112 ;455/90.3,575.1 ;181/129,130,135 ;379/430,431 ;381/370,374,371 ;2/209 |
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