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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29238633

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

REFERENCES:
patent: D368738 (1996-04-01), Osada et al.
patent: D403705 (1999-01-01), Izushima et al.
patent: D429280 (2000-08-01), Mittersinker
patent: D481069 (2003-10-01), Kennedy et al.
patent: D482067 (2003-11-01), Yang
patent: D482071 (2003-11-01), Kennedy et al.
patent: D496963 (2004-10-01), Losel
patent: D498494 (2004-11-01), Conklin et al.
patent: D500792 (2005-01-01), Bain et al.
patent: D500794 (2005-01-01), Conklin et al.
patent: D508082 (2005-08-01), Bain et al.
Sanford UK Paper Mate, Star Gels Grip, dated Nov. 2004. (2 pages).
Picture of Format and Sento model pens, as shown on p. 10, Solid Schreiben Write Ecrire catalog, dated 2003. (2 pages).
Picture of Trasparente Effetto Gomma Satinata Argento (transparent rubber effect satined silver) pen, p. 247, as shown in StiloLinea catalog, 2002. (2 pages).
Picture of Stabilo “Cyper Speed” pen, dated Sep. 8, 2005.
Undated photograph of PaperMate Visibility mechanical pencil.
Undated photograph of PaperMate Apex retractable mechanical pencil.

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