2207859

Information

• Patent Grant
• 2207859

• References
• Source

• Patent Number

  2,207,859

• Date Filed

  Not available

• Date Issued

  Tuesday, July 16, 1940
  84 years ago

• CPC

  • C09B35/00 - Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
  • C09B33/18 - Trisazo or higher polyazo dyes
  • C09B45/24 - Disazo or polyazo compounds
  • C09B45/28 - containing copper

• US Classifications

  • 534 - Organic compounds