3499721

Information

• Patent Grant
• 3499721

• References
• Source

• Patent Number

  3,499,721

• Date Filed

  Not available

• Date Issued

  Tuesday, March 10, 1970
  54 years ago

• CPC

  • D06P1/008 - Preparing dyes in situ
  • D06P1/32 - using oxidation dyes

• US Classifications

  • 008 - Bleaching and dyeing
  • 552 - Organic compounds