Writing instrument

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6866436
APP PUB NO 20040028453A1
SERIAL NO

10612564

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A writing instrument has a tubular member having a longitudinal axis and an aperture at an end thereof. A writing component is mounted in the tubular member and has a writing tip at an end portion thereof. The tubular member and the writing component are movable relative to one another in an axial direction along the longitudinal axis of the tubular member between a writing position at which the writing tip protrudes from the aperture of the tubular member and a housed position at which the writing tip is disposed in the tubular member. An airtight sleeve is connected to the end portion of the writing component for movement between an advanced position and a retracted position. The airtight sleeve has a bore through which the end portion of the writing component passes during movement of the writing component between the writing position and the housed position.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
MICRO CO LTDTOKYO JAPAN TOKYO METROPOLIS

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishii, Yousuke Koriyama, JP 24 402
Kanari, Hiroyuki Fukushima-ken, JP 9 37

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