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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29227449

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

REFERENCES:
patent: 3576374 (1971-04-01), Lile
patent: 3615596 (1971-10-01), Petti et al.
patent: 4530503 (1985-07-01), Rice
patent: D331777 (1992-12-01), Sedlmeier et al.
patent: D377806 (1997-02-01), Samucha
patent: D386553 (1997-11-01), Polak et al.
patent: D421627 (2000-03-01), Gootnick
patent: 6149333 (2000-11-01), Kershaw
patent: D447172 (2001-08-01), Cohen
patent: 6379271 (2002-04-01), Arnke
patent: 6422974 (2002-07-01), Schimmel
patent: D487111 (2004-02-01), Rosenbaum
patent: D490465 (2004-05-01), Qiu
patent: D492349 (2004-06-01), Qiu
patent: D499139 (2004-11-01), Oka
patent: D506506 (2005-06-01), Qiu

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