Writing instrument

Office supplies; artists and teachers materials – Equipment for writing – drawing – or for fine arts – Marking instrument

Design Patent

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Design Patent

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29235022

CLAIM:
The ornamental design for a writing instrument, as shown and described.

REFERENCES:
patent: D317625 (1991-06-01), Itoh
patent: 5221152 (1993-06-01), Chuang
patent: 5228794 (1993-07-01), Hochstetler
patent: D345759 (1994-04-01), Poisson
patent: D359307 (1995-06-01), Anavil et al.
patent: D385918 (1997-11-01), Katami
patent: D393876 (1998-04-01), Gray et al.
patent: D401276 (1998-11-01), Worther
patent: 5984556 (1999-11-01), Gray et al.
patent: D421625 (2000-03-01), Oka
patent: D444499 (2001-07-01), Nakazawa
patent: D473898 (2003-04-01), Nakazawa

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