3557139

Information

• Patent Grant
• 3557139

• References
• Source

• Patent Number

  3,557,139

• Date Filed

  Not available

• Date Issued

  Tuesday, January 19, 1971
  53 years ago

• CPC

  • C09B44/14 - 1, 2-Diazoles or hydrogenated 1,2-diazoles Pyrazolium; Indazolium
  • C09B27/00 - Preparations in which the azo group is formed in any way other than by diazotising and coupling
  • Y10S8/927 - Polyacrylonitrile fiber

• US Classifications

  • 548 - Organic compounds
  • 008 - Bleaching and dyeing
  • 534 - Organic compounds
  • 558 - Organic compounds