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

Patent Owner(s)

Patent Owner	Address
VALMET TECHNOLOGIES INC	KEILASATAMA 5 ESPOO FI-02150

International Classification(s)

• D21G:CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
• D21F:PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER ....

• 2008 Application Filing Year
• D21G Class
• 25 Applications Filed
• 10 Patents Issued To-Date
• 40 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Ajoviita, Tommi	Tikkakoski, FI	6	35
# of filed Patents : 6 Total Citations : 35

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Patent Citation Ranking

• 1 Citation Count
• D21G Class

• 5 % this patent is cited more than
• 13 Age

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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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
October 09, 2012	US,8282785,B2   US8282785B2	GRANTED PATENT AS SECOND PUBLICATION
June 03, 2010	US,20100132904,A1   US20100132904A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8282785

Roll cover and a covered roll

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Abstract

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Invention relates to a roll cover and a covered roll for paper, board, finishing and tissue machines. More specifically it relates to a roll particularly used in calendar which roll comprises a metal roll body and a cover of a composite material on it. The cover has at least three layers which comprise polymer matrix and fiber reinforcement the material of the being different at least in successive layers.

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Description

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Claims

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