Writing pen with space behind nib

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4496258
SERIAL NO

06499026

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A writing pen wherein a valve element is operated to supply a writing nib held in a pen holder with ink from an ink reservoir is disclosed. The pen is characterized by having an ink guide stem between the writing nib and the valve element and a small ink-retaining space that is provided at least between the rear end of the nib and the front end of the ink guide stem.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
PILOT INK CO LTDAICHI

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Inaba, Takao Aichi, JP 24 400
Tanaka, Isao Aichi, JP 112 1708

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