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

Patent Owner(s)

Patent Owner	Address
USG INTERIORS LLC	550 WEST ADAMS STREET #189 CHICAGO IL 60661-3676

International Classification(s)

• 2502:PREFABRICATED OR PRE-ASSEMBLED BUILDING PARTS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Gulbrandsen, Peder J	Aurora, US	61	753
Lehane,, Jr James J	McHenry, US	24	254
Paulsen, Mark R	Waukegan, US	37	375
Underkofler, Abraham M	Waukegan, US	51	542

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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: D678549

Suspended ceiling grid runner assembly

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