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

Patent Owner(s)

Patent Owner	Address
3M INNOVATIVE PROPERTIES COMPANY	P O BOX 33427 ST PAUL MN 55133-3427

International Classification(s)

• 2902:DEVICES AND EQUIPMENT FOR ACCIDENT PREVENTION AND ....

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Abel, Nathan A	Minneapolis, US	49	609
Dwyer, Gary E	Mallorytown, CA	31	428
Pilgrim, John M	Woodbury, US	31	263
Steffen, James E	Woodbury, US	21	522

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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: D681190

Filter cover for powered air purifying respirator

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