发明名称 Ring binder
摘要 A ring binder adapted to be secured to an article by at least one integral rivet, the ring binder comprising a substantially rigid integral upper plate supporting a pair of pivotable lower plates to which a plurality of ring members are mounted, the rivet comprising (1) a barrel that is in direct engagement with the upper plate and (2) a plurality of claws for securing the article, wherein at least 75% of said claws extend away from a longitudinal axis of the barrel. Also disclosed is a rivet adapted to secure a ring binder to an article, the rivet comprising (1) a barrel for engaging the ring binder and (2) a plurality of claws for securing the article, wherein at least a majority of the claws generally extend away from a longitudinal axis of the barrel.
申请公布号 USRE38731(E1) 申请公布日期 2005.05.03
申请号 US20000725788 申请日期 2000.11.29
申请人 WORLD WIDE STATIONERY MFG CO 发明人 TO CHUN YUEN
分类号 B42F3/00;B42F3/04;B42F13/00;B42F13/20;(IPC1-7):B42F3/04 主分类号 B42F3/00
代理机构 代理人
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