Maintenance method of bowling ball, plasticizer

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United States of America Patent

PATENT NO 11890531
SERIAL NO

16536288

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The purpose of the present invention is to provide a maintenance method for restoring the flexibility of a surface layer of a bowling ball in which the flexibility of the surface layer is lost by volatilization or elution of a plasticizer. In order to solve the above-mentioned problems, a maintenance method of bowling ball is provided, characterized in that a plasticizer is applied to a surface layer of the bowling ball.

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Patent Owner(s)

Patent OwnerAddress
YAMADA YUTAKATOKYO

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yamada, Yutaka Tokyo, JP 163 2323

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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 Aug 6, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 Aug 6, 2031
11.5 Year Payment $7400.00 $3700.00 $1850.00 Aug 6, 2035
Fee Large entity fee small entity fee micro entity fee
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