Pen with multiple colors

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United States of America Patent

PATENT NO 11529824
SERIAL NO

17320289

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Importance

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Abstract

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A writing instrument, in particular a pen, comprising at least two reservoirs for storing colorants or inks of at least two different colors, characterized by at least one pumping means which is designed to be actuated by at least one finger of a user.

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Patent Owner(s)

Patent OwnerAddress
SOCIETE BIC92110 CLICHY

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Duffy, David Michael Zurich, CH 26 12
Elliott-Bowman, Bernadette Leatherhead, GB 28 12

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