3929785

Information

• Patent Grant
• 3929785

• References
• Source

• Patent Number

  3,929,785

• Date Filed

  Not available

• Date Issued

  Tuesday, December 30, 1975
  48 years ago

• CPC

  • C07D471/14 - Ortho-condensed systems
  • C09B29/3621 - from a pyridine ring
  • C09B43/003 - Cyclisation of azo dyes; Condensation of azo dyes with formation of ring
  • C09B57/00 - Other synthetic dyes of known constitution
  • C09B69/001 - Dyes containing an onium group attached to the dye skeleton via a bridge
  • D06P1/16 - using dispersed
  • D06P1/40 - using acid dyes without azo groups
  • D06P1/42 - using basic dyes without azo groups
  • Y10S8/917 - Wool or silk
  • Y10S8/922 - Polyester fiber
  • Y10S8/924 - Polyamide fiber
  • Y10S8/927 - Polyacrylonitrile fiber

• US Classifications

  • 544 - Organic compounds
  • 008 - Bleaching and dyeing
  • 534 - Organic compounds