2900216

Information

• Patent Grant
• 2900216

• References
• Source

• Patent Number

  2,900,216

• Date Filed

  Not available

• Date Issued

  Tuesday, August 18, 1959
  65 years ago

• CPC

  • C09B1/002 - containing onium groups
  • C09B1/207 - Dyes with amino groups and with onium groups
  • C09B1/32 - substituted by aryl groups
  • C09B1/325 - Dyes with no other substituents than the amino groups
  • C09B1/40 - the acyl groups being residues of an aliphatic or araliphatic carboxylic acid
  • C09B1/514 - N-aryl derivatives
  • C09B5/60 - Thiazines Oxazines
  • C09B62/80 - Anthracene dyes
  • C09B69/00 - Dyes not provided for by a single group of this subclass
  • D06P3/70 - material containing nitrile groups
  • Y10S8/927 - Polyacrylonitrile fiber

• US Classifications

  • 008 - Bleaching and dyeing
  • 546 - Organic compounds
  • 552 - Organic compounds
  • 564 - Organic compounds