3857972

Information

• Patent Grant
• 3857972

• References
• Source

• Patent Number

  3,857,972

• Date Filed

  Not available

• Date Issued

  Tuesday, December 31, 1974
  50 years ago

• CPC

  • C07D491/04 - Ortho-condensed systems
  • A23L27/205
  • A23L27/2054
  • A24B15/36 - containing a heterocyclic ring
  • C07D239/70 - condensed with carbocyclic rings or ring systems
  • C07D495/04 - Ortho-condensed systems

• US Classifications

  • 426 - Food or edible material: processes, compositions, and products
  • 131 - Tobacco
  • 544 - Organic compounds