3900460

Information

• Patent Grant
• 3900460

• References
• Source

• Patent Number

  3,900,460

• Date Filed

  Not available

• Date Issued

  Tuesday, August 19, 1975
  49 years ago

• CPC

  • C09B62/01 - Disazo or polyazo dyes
  • C09B26/02 - Hydrazone dyes
  • C09B31/147 - Pyrazoles
  • C09B31/28 - Heterocyclic compounds
  • C09B43/00 - Preparation of azo dyes from other azo compounds

• US Classifications

  • 534 - Organic compounds