2188369

Information

• Patent Grant
• 2188369

• References
• Source

• Patent Number

  2,188,369

• Date Filed

  Not available

• Date Issued

  Tuesday, January 30, 1940
  84 years ago

• CPC

  • C09B1/264 - sulfonated
  • C09B1/523 - N-substituted amino and hydroxy anthraquinone

• US Classifications

  • 552 - Organic compounds
  • 008 - Bleaching and dyeing