2193328

Information

• Patent Grant
• 2193328

• References
• Source

• Patent Number

  2,193,328

• Date Filed

  Not available

• Date Issued

  Tuesday, March 12, 1940
  84 years ago

• CPC

  • D06P1/30 - using sulfur dyes
  • D06P1/6429 - bound to a six-membered aromatic carbocyclic ring
  • D06P1/645 - Aliphatic, araliphatic or cycloaliphatic compounds containing amino groups

• US Classifications

  • 008 - Bleaching and dyeing