2193997

Information

• Patent Grant
• 2193997

• References
• Source

• Patent Number

  2,193,997

• Date Filed

  Not available

• Date Issued

  Tuesday, March 19, 1940
  84 years ago

• CPC

  • C09B31/00 - Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
  • C09B31/075 - ortho-Hydroxy carboxylic acid amides
  • C09B31/10 - from a coupling component "C" containing reactive methylene groups
  • C09B31/11 - Aceto- or benzoyl-acetylarylides

• US Classifications

  • 534 - Organic compounds
  • 008 - Bleaching and dyeing