3904660

Information

• Patent Grant
• 3904660

• References
• Source

• Patent Number

  3,904,660

• Date Filed

  Not available

• Date Issued

  Tuesday, September 9, 1975
  49 years ago

• CPC

  • C09B1/002 - containing onium groups
  • C09B1/26 - Dyes with amino groups substituted by hydrocarbon radicals
  • C09B1/51 - N-substituted amino-hydroxy anthraquinone
  • Y10S8/924 - Polyamide fiber

• US Classifications

  • 552 - Organic compounds
  • 008 - Bleaching and dyeing
  • 544 - Organic compounds
  • 546 - Organic compounds
  • 548 - Organic compounds