3421829

Information

• Patent Grant
• 3421829

• References
• Source

• Patent Number

  3,421,829

• Date Filed

  Not available

• Date Issued

  Tuesday, January 14, 1969
  57 years ago

• CPC

  • C09B35/023 - in which the coupling component is a hydroxy or polyhydroxy compound
  • C09B35/04 - the tetrazo component being a benzene derivative
  • C09B35/14 - from hydroxy compounds
  • Y10S8/921 - Cellulose ester or ether
  • Y10S8/922 - Polyester fiber
  • Y10S534/01 - Mixtures of azo compounds

• US Classifications

  • 008 - Bleaching and dyeing
  • 534 - Organic compounds