2908684

Information

• Patent Grant
• 2908684

• References
• Source

• Patent Number

  2,908,684

• Date Filed

  Not available

• Date Issued

  Tuesday, October 13, 1959
  65 years ago

• CPC

  • C09B1/42 - the acyl groups being residues of an aromatic carboxylic acid
  • C09B1/32 - substituted by aryl groups
  • C09B1/325 - Dyes with no other substituents than the amino groups
  • C09B5/16 - Benz-diazabenzanthrones
  • C09B5/28 - Anthrimide carbazoles
  • C09B5/38 - Compounds containing acridone and carbazole rings
  • C09B5/40 - Condensation products of benzanthronyl-amino-anthraquinones

• US Classifications

  • 546 - Organic compounds
  • 544 - Organic compounds
  • 548 - Organic compounds
  • 552 - Organic compounds