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

Patent Owner(s)

Patent Owner	Address
VALE S A	PRAIA DE BOTAFOGO Nº 186 ROOMS 1101 1701 AND 1801 BOTAFOGO RIO DE JANEIRO RJ

International Classification(s)

• C22B:PRODUCTION OR REFINING OF METALS

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Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Bergerman, Mauricio Guimarães	Poços de Caldas, BR	1	0
Da, Silva Wesley José	Belo Horizonte, BR	1	0
Gonçalves, Keila Lane de Carvalho	Belo Horizonte, BR	1	0
Marques, Antonio Euclides Jaques	Belo Horizonte, BR	1	0
Rodrigues, Wendel Johnson	Louveira, BR	3	5

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
7.5 Year Payment	$3600.00	$1800.00	$900.00	Apr 17, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Apr 17, 2029

Fee	Large entity fee	small entity fee	micro entity fee
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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
October 17, 2017	US,9790571,B2   US9790571B2	GRANTED PATENT AS SECOND PUBLICATION
May 22, 2014	US,20140137703,A1   US20140137703A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9790571

Process for removing uranium in copper concentrate via magnetic separation

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