Keyboard device for keyboard instrument

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12136403
APP PUB NO 20230097634A1
SERIAL NO

17950883

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A keyboard device for a keyboard instrument includes a keyboard chassis, a key disposed on the keyboard chassis, and a key support mechanism which supports the key from below and causes the key to operate such that the key pivotally moves about a virtual pivot. One of a first arm rear-side connecting portion and a second arm front-side connecting portion includes an engagement shaft extending in a left-right direction, and the other of them includes an engagement recess which has a U shape in side view and open in one of a front direction and a rear direction and is engaged with the engagement shaft. A cushioning member in sliding contact with an inner surface of the engagement recess is mounted on the engagement shaft in a state covering an outer peripheral surface of the engagement shaft.

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First Claim

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Family

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Patent Owner(s)

Patent OwnerAddress
KABUSHIKI KAISHA KAWAI GAKKI SEISAKUSHO200 TERAJIMA-CHO HAMAMATSU-SHI SHIZUOKA 430-8665

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yamaguchi, Tsutomu Hamamatsu, JP 96 924

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Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 May 5, 2028
7.5 Year Payment $3600.00 $1800.00 $900.00 May 5, 2032
11.5 Year Payment $7400.00 $3700.00 $1850.00 May 5, 2036
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Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00