3683013

Information

• Patent Grant
• 3683013

• References
• Source

• Patent Number

  3,683,013

• Date Filed

  Not available

• Date Issued

  Tuesday, August 8, 1972
  52 years ago

• CPC

  • C09B11/06 - Hydroxy derivatives of triarylmethanes in which at least one OH group is bound to an aryl nucleus and their ethers or esters
  • C09B45/16 - containing chromium
  • D06P1/621 - Compounds without nitrogen
  • D06P1/625 - Aromatic
  • Y10S8/924 - Polyamide fiber

• US Classifications

  • 562 - Organic compounds
  • 008 - Bleaching and dyeing