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

Patent Owner(s)

Patent Owner	Address
HERCULES LLC	500 HERCULES ROAD WILMINGTON DE 19808

International Classification(s)

• D01B:MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMEN....

• 2005 Application Filing Year
• D01B Class
• 8 Applications Filed
• 3 Patents Issued To-Date
• 37.50 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Gillette, Paul C	Newark , US	12	225
# of filed Patents : 12 Total Citations : 225
Hall, Charles Ernest	Wilmington , US	1	0
# of filed Patents : 1 Total Citations : 0

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Patent Citation Ranking

• 0 Citation Count
• D01B Class

• 0 % this patent is cited more than
• 16 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
July 21, 2009	US,7562419,B2   US7562419B2	GRANTED PATENT AS SECOND PUBLICATION
January 19, 2006	US,20060010669,A1   US20060010669A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7562419

Process for purification of cotton linters

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Abstract

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An improved process for the purification of raw cotton linters includes the cutting of a first, second, third or mill run cut raw cotton linters to a particle size that passes through a 2,500 micrometer screen and then mechanically separating the linters into clean and unclean fractions. The clean fraction contains purified cut raw cotton linters and the unclean fraction contains the impurities.

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Description

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Claims

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• AS2010
• I2009
• STCF2009
• AS�2008
• AS2008
• P2006
• F2005
• AS2005
• PD2004
• AS2002

Date	Code	Event	Description
Jan 21, 2021	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 12TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1553); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 12
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Mar 14, 2013	AS�	SECURITY INTEREST	free format text: RELEASE OF PATENT SECURITY AGREEMENT;ASSIGNOR:THE BANK OF NOVA SCOTIA;REEL/FRAME:030025/0320 Owner name: ASHLAND LICENSING AND INTELLECTUAL PROPERTY LLC, OHIO Effective Date: Mar 14, 2013 free format text: RELEASE OF PATENT SECURITY AGREEMENT;ASSIGNOR:THE BANK OF NOVA SCOTIA;REEL/FRAME:030025/0320 Owner name: ASHLAND LICENSING AND INTELLECTUAL PROPERTY LLC, O Effective Date: Mar 14, 2013 free format text: RELEASE OF PATENT SECURITY AGREEMENT;ASSIGNOR:THE BANK OF NOVA SCOTIA;REEL/FRAME:030025/0320 Owner name: AQUALON COMPANY, DELAWARE Effective Date: Mar 14, 2013 free format text: RELEASE OF PATENT SECURITY AGREEMENT;ASSIGNOR:THE BANK OF NOVA SCOTIA;REEL/FRAME:030025/0320 Owner name: HERCULES INCORPORATED, DELAWARE Effective Date: Mar 14, 2013 free format text: RELEASE OF PATENT SECURITY AGREEMENT;ASSIGNOR:THE BANK OF NOVA SCOTIA;REEL/FRAME:030025/0320 Owner name: ISP INVESTMENTS INC., DELAWARE Effective Date: Mar 14, 2013
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Jul 21, 2009	I	Issuance
Jul 01, 2009	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Nov 13, 2008	AS�	SECURITY INTEREST	free format text: SECURITY AGREEMENT;ASSIGNORS:ASHLAND LICENSING AND INTELLECTUAL PROPERTY...;AQUALON COMPANY;HERCULES INCORPORATED;REEL/FRAME:021924/0001 Owner name: BANK OF AMERICA, N.A. AS ADMINISTRATIVE AGENT, CAL Effective Date: Nov 13, 2008 free format text: SECURITY AGREEMENT;ASSIGNORS:ASHLAND LICENSING AND INTELLECTUAL PROPERTY...;AQUALON COMPANY;HERCULES INCORPORATED;REEL/FRAME:021924/0001 Owner name: BANK OF AMERICA, N.A. AS ADMINISTRATIVE AGENT,CALI Effective Date: Nov 13, 2008
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Jan 19, 2006	P	Published
Jul 13, 2005	F	Filing
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