U.S. patent number D616,023 [Application Number D/330,296] was granted by the patent office on 2010-05-18 for push button ring mechanism having rectilinear binder rings. This patent grant is currently assigned to World Wide Stationery Mfg. Co., Ltd.. Invention is credited to Chun Yuen To.
United States Patent | D616,023 |
To | May 18, 2010 |
Inventors: | To; Chun Yuen (Hong Kong, CN) |
---|---|
Assignee: | World Wide Stationery Mfg. Co.,
Ltd. (Kwai Chung, New Territory, HK) |
Appl. No.: | D/330,296 |
Filed: | January 5, 2009 |
Application Number | Filing Date | Patent Number | Issue Date | ||
---|---|---|---|---|---|
29275751 | Jan 5, 2007 | D585935 | |||
Jul 6, 2006 [CN] | 2006 3 0131069 | |||
Current U.S. Class: | D19/32 |
Current International Class: | 1904 |
Field of Search: | ;D19/32,26-30,49,100 ;402/26,31,36,38,39,41 ;281/45-51,3.1,15.1,21.1,22 |
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(A) World Wide Stationary Manufacturing Company Limited. cited by other . (B) World Wide Stationary Manufacturing Company Limited. cited by other . (C) World Wide Stationary Manufacturing Company Limited. cited by other. |
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