Method of dyeing keratin-containing fibres
US7189268B2 · kind B2 · utility
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5References
9Claims
0Family size
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Key dates
| Filing date | Sep 27, 2005 |
| Grant date | Mar 13, 2007 |
| Priority date | — |
| Expiry date | Sep 27, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B44/16
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method of dyeing keratin-containing fibres, which comprises using a dye of formulawherein
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.