Writing instrument

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

Design Patent

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Details

CD19S055000, CD19S051000, CD19S056000

Design Patent

active

D0441017

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

REFERENCES:
patent: D. 79546 (1929-10-01), Biffar
patent: D. 83672 (1931-03-01), Esterow
patent: D. 138825 (1944-09-01), Waldinger
patent: D. 192836 (1962-05-01), Zierhut
patent: D. 204527 (1966-04-01), Bich
patent: D. 215768 (1969-10-01), Horie
patent: D. 257465 (1980-10-01), Zierhut
patent: D. 269189 (1983-05-01), Sakaoka
patent: D. 303549 (1989-09-01), Horntrich
patent: D. 314978 (1991-02-01), Oka
patent: D. 366901 (1996-02-01), Takahashi
patent: D. 378601 (1997-03-01), Sakuno
patent: D. 384105 (1997-09-01), Robert et al.
patent: D. 389131 (1998-01-01), Nagaoka
patent: D. 396058 (1998-07-01), Schmidt et al.
patent: D. 398494 (1998-09-01), Bickford et al.
patent: D. 401624 (1998-11-01), Sakuno
patent: D. 404070 (1999-01-01), Hasegawa
patent: D. 406604 (1999-03-01), Andrews et al.
patent: D. 413926 (1999-09-01), Polidoro
patent: 3077691 (1963-02-01), Shea

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