3720671

Information

• Patent Grant
• 3720671

• References
• Source

• Patent Number

  3,720,671

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1973
  51 years ago

• CPC

  • C07D487/14 - Ortho-condensed systems
  • C09B43/003 - Cyclisation of azo dyes; Condensation of azo dyes with formation of ring
  • C09B57/00 - Other synthetic dyes of known constitution

• US Classifications

  • 544 - Organic compounds
  • 008 - Bleaching and dyeing