3342831

Information

• Patent Grant
• 3342831

• References
• Source

• Patent Number

  3,342,831

• Date Filed

  Not available

• Date Issued

  Tuesday, September 19, 1967
  58 years ago

• CPC

  • C09B1/50 - Amino-hydroxy-anthraquinones Ethers and esters thereof
  • C09B1/22 - Dyes with unsubstituted amino groups
  • C09B1/24 - sulfonated
  • C09B1/585 - substituted by aryl radicals

• US Classifications

  • 548 - Organic compounds
  • 552 - Organic compounds