2689256

Information

• Patent Grant
• 2689256

• References
• Source

• Patent Number

  2,689,256

• Date Filed

  Not available

• Date Issued

  Tuesday, September 14, 1954
  70 years ago

• CPC

  • C07C309/73 - to carbon atoms of non-condensed six-membered aromatic rings
  • C07C309/72 - having sulfur atoms of esterified sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton

• US Classifications

  • 558 - Organic compounds
  • 106 - Compositions: coating or plastic
  • 568 - Organic compounds