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

Patent Owner(s)

Patent Owner	Address
SHELL HARVEY DUANE	Not Provided

International Classification(s)

• F23J:REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COM....
• F23M:CONSTRUCTIONAL DETAILS OF COMBUSTION CHAMBERS, NOT....
• F28F:DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATU....
• F23B:METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOL....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Shell, Harvey Duane	Cimarron, US	2	0

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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	May 3, 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
November 03, 2015	US,9175852,B2   US9175852B2	GRANTED PATENT AS SECOND PUBLICATION
January 19, 2012	US,20120012095,A1   US20120012095A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 2012/0012,095

Efficient Heat Transfer Using Fins

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