Ball pen

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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D0532454

CLAIM:
I claim the ornamental design for a ball pen, as shown and described.

REFERENCES:
patent: 2857882 (1958-10-01), Forster
patent: D190349 (1961-05-01), Doman
patent: D191078 (1961-08-01), Lovejoy
patent: 3195545 (1965-07-01), Lederberg et al.
patent: D215042 (1969-08-01), Di Spirito
patent: D312837 (1990-12-01), Oka
patent: D387804 (1997-12-01), Izushima
patent: D395875 (1998-07-01), Aiken et al.
patent: D396729 (1998-08-01), Ham
patent: D445826 (2001-07-01), Baudino et al.
patent: D452879 (2002-01-01), Koike
patent: 97/16320 (1997-05-01), None
English Language Abstract of WO 97/16320.

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