Process for making chrome tanned leathers

United States of America Patent

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Jun 20, 2006
Grant Date
Feb 19, 2004
app pub date
Feb 28, 2003
filing date
Feb 28, 2002

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Expired

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Abstract

The present invention provides an improved pickling and bating free process suitable for both hides and skins for making chrome tanned leathers by using a mixture of conventional chrome tanning salt and alkali metal salt is used at a pH in the range of 5 5.5.

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COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH	NEW DELHI 110001

International Classification(s)

C14C:CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g....

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Inventor Name	Address	# of filed Patents	Total Citations
Muralidharan, Chellapp	Chennai, IN	1	2
Sundar, Victor John	Chennai, IN	2	3

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Process for making chrome tanned leathers

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United States of America Patent

10377206

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PATENT NO	7063728
APP PUB NO	20040031106A1
SERIAL NO	10377206
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity Expired	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
June 20, 2006	US,7063728,B2 US7063728B2	GRANTED PATENT AS SECOND PUBLICATION
February 19, 2004	US,20040031106,A1 US20040031106A1	FIRST PUBLISHED PATENT APPLICATION

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10377206

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