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

Patent Owner(s)

Patent Owner	Address
FIBERWEB COROVIN GMBH	WOLTORFER STRASSE 124 D-31224 PEINE

International Classification(s)

• D04H:MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAME....

• 1999 Application Filing Year
• D04H Class
• 113 Applications Filed
• 57 Patents Issued To-Date
• 50.45 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Etzold, Stefan	Langenhagen, DE	5	43
# of filed Patents : 5 Total Citations : 43
Nickel, Axel	Peine, DE	15	35
# of filed Patents : 15 Total Citations : 35

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Patent Citation Ranking

• 8 Citation Count
• D04H Class

• 1.89 % this patent is cited more than
• 24 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

Full Text

US Patent No: 6312545

Method for producing a spunbonded fabric from thermobonded crimped bicomponent fibers

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Abstract

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A process is disclosed for the manufacture of a spunbonded fabric consisting of thermobonded curled bicomponent fibers where the bicomponent fibers consist of two plastic materials with different properties. The process according to the invention consists of three steps: the fibers spun from the two plastic materials are drawn off uncurled and stretched in a first step. In a second step the fibers are placed on a sieve belt and thermobonded. In a third step the bicomponent fibers of the obtained nonwoven fabric are finally curled by lengthwise and/or transverse stretching and heat treatment.

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Description

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Claims

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Legal Events

 

• FPAY2013
• FPAY2009
• AS2006
• FPAY2005
• FEPP2001
• I2001
• STCF2001
• F1999
• AS1999
• PD1997

Date	Code	Event	Description
Mar 07, 2013	FPAY	FEE PAYMENT	year of fee payment: 12
Apr 08, 2009	FPAY	FEE PAYMENT	year of fee payment: 8
Dec 21, 2006	AS	ASSIGNMENT	free format text: CHANGE OF NAME;ASSIGNOR:COROVIN GMBH;REEL/FRAME:019781/0613 Owner name: FIBERWEB COROVIN GMBH, GERMANY Effective Date: Dec 21, 2006
Apr 13, 2005	FPAY	FEE PAYMENT	year of fee payment: 4
Dec 04, 2001	FEPP	FEE PAYMENT PROCEDURE	free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Nov 06, 2001	I	Issuance
Oct 18, 2001	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Mar 30, 1999	F	Filing
Mar 15, 1999	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:NICKEL, AXEL;ETZOLD, STEFAN;REEL/FRAME:010375/0136 Owner name: COROVIN GMBH, GERMANY Effective Date: Mar 15, 1999
Aug 01, 1997	PD	Priority Date