2421553

Information

• Patent Grant
• 2421553

• References
• Source

• Patent Number

  2,421,553

• Date Filed

  Not available

• Date Issued

  Tuesday, June 3, 1947
  77 years ago

• CPC

  • C09B62/09 - Disazo or polyazo dyes
  • C09B31/16 - Trisazo dyes
  • C09B43/16 - linking amino-azo or cyanuric acid residues

• US Classifications

  • 534 - Organic compounds