Watch component and watch

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11669048
APP PUB NO 20210072702A1
SERIAL NO

17012120

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A watch component includes a metal material obtained by performing a nitrogen absorption treatment on a base material, the base material being a ferritic stainless steel that contains, by mass %, 18 to 22% of Cr, 1.3 to 2.8% of Mo, 0.05 to 0.50% of Nb, less than 0.5% of Ni, less than 0.8% of Mn, less than 0.5% of Si, less than 0.10% of P, less than 0.05% of S, less than 0.05% of N, and less than 0.05% of C, with a remainder thereof being composed of Fe and an unavoidable impurity.

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Patent Owner(s)

Patent OwnerAddress
SEIKO EPSON CORPORATION1-6 SHINJUKU 4-CHOME SHINJUKU-KU TOKYO 160-8801

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Takasawa, Koki Suwa, JP 22 56

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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 Dec 6, 2026
7.5 Year Payment $3600.00 $1800.00 $900.00 Dec 6, 2030
11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 6, 2034
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Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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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