3875139

Information

• Patent Grant
• 3875139

• References
• Source

• Patent Number

  3,875,139

• Date Filed

  Not available

• Date Issued

  Tuesday, April 1, 1975
  49 years ago

• CPC

  • C09B45/025 - of azo-pyridone series
  • C09B45/00 - Complex metal compounds of azo dyes

• US Classifications

  • 534 - Organic compounds
  • 008 - Bleaching and dyeing