2807622

Information

• Patent Grant
• 2807622

• References
• Source

• Patent Number

  2,807,622

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1957
  67 years ago

• CPC

  • C09B43/36 - with amino-anthracene or amino-anthraquinone dyes
  • C09B1/36 - Dyes with acylated amino groups
  • C09B3/06 - Preparation from starting materials already containing the benzanthrone nucleus
  • C09B5/2427 - only sulfur-containing hetero rings
  • C09B5/347 - Anthraquinone acridones
  • C09B5/44 - Azines of the anthracene series

• US Classifications

  • 548 - Organic compounds