2242456

Information

• Patent Grant
• 2242456

• References
• Source

• Patent Number

  2,242,456

• Date Filed

  Not available

• Date Issued

  Tuesday, May 20, 1941
  83 years ago

• CPC

  • C09B35/36 - Trisazo dyes of the type
  • C09B31/16 - Trisazo dyes
  • C09B31/22 - from a coupling component "D" containing directive hydroxyl and amino groups
  • C09B33/18 - Trisazo or higher polyazo dyes
  • C09B35/374 - D contains two aryl nuclei linked by at least one of the groups -CON<, -SO2N<, -SO2-, or -SO2-O-

• US Classifications

  • 534 - Organic compounds