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

Patent Owner(s)

Patent Owner	Address
QSA GLOBAL INC	40 NORTH AVENUE BURLINGTON MA 01803

International Classification(s)

• G21G:CONVERSION OF CHEMICAL ELEMENTS; RADIOACTIVE SOURC....

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Brosofsky, Robert	Chelmsford, US	2	6
Shilton, Mark G	Chelmsford, US	10	28
Vose, Mark W	Windham, US	10	13

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
7.5 Year Payment	$3600.00	$1800.00	$900.00	Mar 26, 2027
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Mar 26, 2031

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 7.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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

Full Text

US Patent Application No: 2019/0295,736

LOW DENSITY SPHERICAL IRIDIUM SOURCE

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