2180805

Information

• Patent Grant
• 2180805

• References
• Source

• Patent Number

  2,180,805

• Date Filed

  Not available

• Date Issued

  Tuesday, November 21, 1939
  85 years ago

• CPC

  • C09B69/00 - Dyes not provided for by a single group of this subclass
  • C09B1/26 - Dyes with amino groups substituted by hydrocarbon radicals
  • C09B62/80 - Anthracene dyes
  • D06P1/30 - using sulfur dyes
  • D06P1/305 - SO3H-groups containing dyes

• US Classifications

  • 552 - Organic compounds
  • 008 - Bleaching and dyeing