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

Patent Owner(s)

• CORE DISTRIBUTION, INC.

International Classification(s)

• 2504:STEPS, LADDERS AND SCAFFOLDS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Caldwell, Allen A	Shakopee, US	11	94
Decker, Matthew J	St. Paul, US	13	166
Kieffer, Mitchell I	Minneapolis, US	20	180
Schlueter, Nathan L	Bloomington, US	13	108

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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: D624200

Step ladder

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