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

Patent Owner(s)

Patent Owner	Address
PARAGON SPACE DEVELOPMENT CORPORATION	3481 EAST MICHIGAN STREET TUCSON AS 85714

International Classification(s)

• E21F:SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VEN....
• E04H:BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOS....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Ball, Tyler M	Sahuarita, US	1	3
Brockbank, Jason H	Tucson, US	1	3
Chiesi, Stephanie Sharo	Tucson, US	5	57
Finger, Barry Wynns	Kemah, US	7	25
MacCallum, Taber K	Tucson, US	19	194
Richardson, Brian F	Tucson, US	2	10
Zuniga, David	Houston, US	1	3

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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	Apr 25, 2028

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
October 25, 2016	US,9476217,B2   US9476217B2	GRANTED PATENT AS SECOND PUBLICATION
August 08, 2013	US,20130199423,A1   US20130199423A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9476217

Mine emergency refuge systems

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