3869441

Information

• Patent Grant
• 3869441

• References
• Source

• Patent Number

  3,869,441

• Date Filed

  Not available

• Date Issued

  Tuesday, March 4, 1975
  49 years ago

• CPC

  • C09B35/031 - containing a six membered ring with one nitrogen atom as the only ring hetero atom
  • C09B29/3626 - from a pyridine ring containing one or more hydroxyl groups (or = O)
  • C09B31/153 - containing a six-membered ring with one nitrogen atom as the only ring hetero-atom

• US Classifications

  • 534 - Organic compounds
  • 008 - Bleaching and dyeing