3917640

Information

• Patent Grant
• 3917640

• References
• Source

• Patent Number

  3,917,640

• Date Filed

  Not available

• Date Issued

  Tuesday, November 4, 1975
  49 years ago

• CPC

  • C09B1/48 - Anthrimides
  • C09B3/00 - Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
  • C09B5/28 - Anthrimide carbazoles
  • C09B5/40 - Condensation products of benzanthronyl-amino-anthraquinones

• US Classifications

  • 548 - Organic compounds
  • 546 - Organic compounds
  • 552 - Organic compounds