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

Patent Owner(s)

Patent Owner	Address
SIKORSKY AIRCRAFT CORPORATION	6900 MAIN STREET P O BOX 9729 STRATFORD CT 06615-9129

International Classification(s)

• 0912:Design Patent

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Alber, Mark R	Milford, US	39	878
Eadie, William J	Cheshire, US	24	392
Hein, Benjamin Reed	Milford, US	5	20
Lauder, Timothy F	Oxford, US	13	102
Smiley, Alfred Russell	Marlborough, US	5	153

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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: D614559

Rotary-wing aircraft with a common dynamic system/backbone structure

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