3137688

Information

• Patent Grant
• 3137688

• References
• Source

• Patent Number

  3,137,688

• Date Filed

  Not available

• Date Issued

  Tuesday, June 16, 1964
  60 years ago

• CPC

  • C09B43/38 - by reacting two or more ortho-hydroxy naphthoic acid dyes with polyamines
  • C08K5/235 - Diazo and polyazo compounds
  • D01F1/06 - Dyes

• US Classifications

  • 534 - Organic compounds