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3457260
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Information
Patent Grant
3457260
References
Source
Patent Number
3,457,260
Date Filed
Not available
Date Issued
Tuesday, July 22, 1969
55 years ago
CPC
C09B69/002 - Hydrazinium group
B21D53/04 - of sheet metal
C08K5/0041 - Optical brightening agents, organic pigments
C08K5/29 - Compounds containing one or more carbon-to-nitrogen double bonds
C09B1/002 - containing onium groups
C09B1/28 - substituted by alkyl, aralkyl or cyclo alkyl groups
C09B1/32 - substituted by aryl groups
C09B1/50 - Amino-hydroxy-anthraquinones Ethers and esters thereof
C09B1/51 - N-substituted amino-hydroxy anthraquinone
C09B1/542 - Anthraquinones with aliphatic, cycloaliphatic, araliphatic or aromatic ether groups
C09B25/00 - Quinophthalones
C09B43/40 - by substituting hetero atoms by radicals containing other hetero atoms
C09B44/02 - containing ammonium groups not directly attached to an azo group
C09B44/04 - from coupling components containing amino as the only directing group
C09B51/00 - Nitro or nitroso dyes
C09B62/66 - Azo dyes
C09B69/00 - Dyes not provided for by a single group of this subclass
Y10S8/927 - Polyacrylonitrile fiber
US Classifications
548 - Organic compounds
008 - Bleaching and dyeing
544 - Organic compounds
546 - Organic compounds
558 - Organic compounds
564 - Organic compounds
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