2899438

Information

• Patent Grant
• 2899438

• References
• Source

• Patent Number

  2,899,438

• Date Filed

  Not available

• Date Issued

  Tuesday, August 11, 1959
  65 years ago

• CPC

  • C09B1/206 - Dyes with amino groups substituted by heterocyclic radicals
  • C09B1/51 - N-substituted amino-hydroxy anthraquinone

• US Classifications

  • 548 - Organic compounds
  • 008 - Bleaching and dyeing