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

Patent Owner(s)

Patent Owner	Address
GEORG FISCHER DISA A/S	2730 HERLEV

International Classification(s)

• B22C:FOUNDRY MOULDING

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Hansen, Preben Nordgaard	.ANG.lsg.ang.rde, DK	5	27
Jespersen, Emil	Glostrup, DK	4	13
Rasmussen, Niels W	Frederiksberg C, DK	2	5

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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

Full Text

US Patent No: 5865236

Crushed and graded magnetite ore for manufacturing moulds and cores

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