2870135

Information

• Patent Grant
• 2870135

• References
• Source

• Patent Number

  2,870,135

• Date Filed

  Not available

• Date Issued

  Tuesday, January 20, 1959
  66 years ago

• CPC

  • C09B33/18 - Trisazo or higher polyazo dyes
  • C09B31/30 - Other polyazo dyes
  • C09B35/36 - Trisazo dyes of the type
  • C09B35/40 - the component K being a dihydroxy or polyhydroxy compound
  • C09B35/50 - Tetrazo dyes
  • C09B35/64 - Higher polyazo dyes
  • C09B45/28 - containing copper

• US Classifications

  • 534 - Organic compounds
  • 008 - Bleaching and dyeing