3720693

Information

• Patent Grant
• 3720693

• References
• Source

• Patent Number

  3,720,693

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1973
  51 years ago

• CPC

  • C09B1/50 - Amino-hydroxy-anthraquinones Ethers and esters thereof
  • C09B1/36 - Dyes with acylated amino groups
  • C09B1/42 - the acyl groups being residues of an aromatic carboxylic acid
  • C09B1/58 - with mercapto groups substituted by aliphatic, cycloaliphatic, araliphatic or aryl radicals

• US Classifications

  • 552 - Organic compounds
  • 524 - Synthetic resins or natural rubbers