3312682

Information

• Patent Grant
• 3312682

• References
• Source

• Patent Number

  3,312,682

• Date Filed

  Not available

• Date Issued

  Tuesday, April 4, 1967
  57 years ago

• CPC

  • C09B43/18 - by acylation of hydroxyl group or of mercapto group
  • C09B1/285 - Dyes with no other substituents than the amino groups
  • C09B1/5155 - only amino and hydroxy groups
  • C09B5/2472 - 1,3 dioxo derivatives
  • C09B33/06 - in which the coupling component is a diamine or polyamine
  • G03C8/18 - Dye developers
  • Y10S430/156 - Precursor compound

• US Classifications

  • 534 - Organic compounds
  • 552 - Organic compounds