Patents Represented by Attorney J. P. Friedenson

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  • Anthraquinone dyes
    Patent number: 4051155
    Abstract: Anthraquinone compounds having the formula: ##STR1## wherein R is alkylene of 1 to 4 carbon atoms, exhibit attractive blue shades and are useful in dyeing textiles.
    Type: Grant
    Filed: December 15, 1975
    Date of Patent: September 27, 1977
    Assignee: Allied Chemical Corporation
    Inventor: Robert C. Hoare