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

Patent Owner(s)

Patent Owner	Address
SEMES CO LTD	SOUTH KOREA CHUNGNAM CHEONAN CITY NORTHWEST JISHAN CITY FOUR FIVE STREET NO 77 CHEONAN JEOLLANAM-DO

International Classification(s)

• H01L:SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICE....
• A62C:FIRE-FIGHTING
• E05F:DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSIT....
• B66B:ELEVATORS; ESCALATORS OR MOVING WALKWAYS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
BAEK, Doo Hyun	Hwaseong-si, KR	3	0
CHUNG, Nam Ho	Seoul, KR	1	0
KIM, Min Beom	Seoul, KR	2	0
YOON, Eun Sang	Suwon-si, KR	6	4

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
3.5 Year Payment	$1600.00	$800.00	$400.00	May 28, 2028
7.5 Year Payment	$3600.00	$1800.00	$900.00	May 28, 2032
11.5 Year Payment	$7400.00	$3700.00	$1850.00	May 28, 2036

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 3.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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: 2024/0392,622

FIREPROOF DOOR APPARATUS, FIREPROOF STRUCTURE AND SUBSTRATE TREATING FACILITY

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