3311476

Information

• Patent Grant
• 3311476

• References
• Source

• Patent Number

  3,311,476

• Date Filed

  Not available

• Date Issued

  Tuesday, March 28, 1967
  57 years ago

• CPC

  • C07D231/48 - with hydrocarbon radicals attached to said nitrogen atom
  • C07D231/28 - Two oxygen or sulfur atoms
  • C07D231/44 - Oxygen and nitrogen or sulfur and nitrogen atoms
  • C07D231/46 - Oxygen atom in position 3 or 5 and nitrogen atom in position 4
  • C07D231/52 - Oxygen atom in position 3 and nitrogen atom in position 5, or vice-versa
  • G03C7/30517 - 2-equivalent couplers
  • G03C7/34 - Couplers containing phenols
  • G03C8/08 - the substances transferred by diffusion consisting of organic compounds
  • G03C8/10 - of dyes or their precursors

• US Classifications

  • 430 - Radiation imagery chemistry: process, composition, or product thereof
  • 548 - Organic compounds
  • 560 - Organic compounds