3431285

Information

• Patent Grant
• 3431285

• References
• Source

• Patent Number

  3,431,285

• Date Filed

  Not available

• Date Issued

  Tuesday, March 4, 1969
  56 years ago

• CPC

  • C09B62/467 - Anthracene dyes
  • C09B1/207 - Dyes with amino groups and with onium groups
  • C09B1/28 - substituted by alkyl, aralkyl or cyclo alkyl groups
  • C09B1/306 - only sulfonated in a substituent
  • C09B5/02 - the heterocyclic ring being only condensed in peri position
  • C09B5/14 - Benz-azabenzanthrones (anthrapyridones)
  • C09B5/42 - Pyridino anthraquinones
  • Y10S8/924 - Polyamide fiber

• US Classifications

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