3221004

Information

• Patent Grant
• 3221004

• References
• Source

• Patent Number

  3,221,004

• Date Filed

  Not available

• Date Issued

  Tuesday, November 30, 1965
  59 years ago

• CPC

  • C09B62/535 - Metal complex azo dyes
  • C09B45/20 - containing cobalt
  • C09B45/34 - Preparation from o-monohydroxy azo compounds having in the o'-position an atom or functional group other than hydroxyl, alkoxy, carboxyl, amino or keto groups

• US Classifications

  • 534 - Organic compounds
  • 008 - Bleaching and dyeing