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

Patent Owner(s)

Patent Owner	Address
IMERTECH SAS	43 QUAI DE GRENELLE PARIS 75015

International Classification(s)

• B22C:FOUNDRY MOULDING

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Grefhorst, Cornelis	ZZ Winterswijk, NL	3	8
Tzintzos, Spyridon	Athens, GR	2	7

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
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
October 04, 2011	US,8029711,B2   US8029711B2	GRANTED PATENT AS SECOND PUBLICATION
January 29, 2009	US,20090025606,A1   US20090025606A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8029711

Method for producing a core sand and/or mold sand for foundry purposes

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