3642837

Information

• Patent Grant
• 3642837

• References
• Source

• Patent Number

  3,642,837

• Date Filed

  Not available

• Date Issued

  Tuesday, February 15, 1972
  52 years ago

• CPC

  • C09B62/80 - Anthracene dyes
  • C09B1/20 - Preparation from starting materials already containing the anthracene nucleus
  • C09B1/22 - Dyes with unsubstituted amino groups
  • C09B1/56 - Mercapto-anthraquinones

• US Classifications

  • 552 - Organic compounds
  • 548 - Organic compounds