US Patent 7288124 Heteroaromatic binuclear black direct dyes
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Patent Inventor Names
Aziz Fadli0
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Patent abstract
Disclosed herein are novel heteroaromatic binuclear direct dyes, dye compositions containing these dyes and also a process for dyeing keratin fibers using them. In particular, the invention relates to heteroaromatic binuclear direct dyes comprising a pyridine nucleus.
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US Patent 07288124 Heteroaromatic binuclear black direct dyes US Patent 7288124 Heteroaromatic binuclear black direct dyes
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Patent Number
072881240
Patent Number
72881240
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Patent Jurisdiction
Patent Number
072881240
Date of Patent
October 30, 2007
0Patent Application Number
112206880
Date Filed
September 8, 2005
0Official Website
Patent Primary Examiner
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US Patent 07288124 Heteroaromatic binuclear black direct dyes
Infobox
Is a
Patent jurisdiction
Patent number
07288124
Date of patent
October 30, 2007
Patent application number
11220688
Date Filed
September 8, 2005
Patent primary examiner
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