Pen cap

Office supplies; artists and teachers materials – Equipment for writing – drawing – or for fine arts – Element or attachment

Design Patent

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Details

Design Patent

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D0581463

CLAIM:
The ornamental design for a pen cap, as shown and described.

REFERENCES:
patent: D215042 (1969-08-01), Di Spirito
patent: D260407 (1981-08-01), Itoh
patent: D409660 (1999-05-01), Izushima
patent: D480421 (2003-10-01), Hui
patent: D500080 (2004-12-01), Katami
patent: D502216 (2005-02-01), Chen
patent: D525301 (2006-07-01), Katami
patent: D532044 (2006-11-01), Katami
patent: D535698 (2007-01-01), Shibata
patent: D564586 (2008-03-01), Kwok

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