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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
SUMCO CORPORATION	2-1 SHIBAURA 1-CHOME MINATO-KU TOKYO 1058634

International Classification(s)

• C30B:SINGLE-CRYSTAL GROWTH

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Ohara, Masami	Akita, JP	11	38
Sato, Masaru	Akita, JP	152	1423

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Aug 16, 2027

Fee	Large entity fee	small entity fee	micro entity fee
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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
February 16, 2016	US,9260795,B2   US9260795B2	GRANTED PATENT AS SECOND PUBLICATION
January 17, 2013	US,20130014474,A1   US20130014474A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9260795

Closure for silica glass crucible, silica glass crucible and method of handling the same

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