3751420

Information

• Patent Grant
• 3751420

• References
• Source

• Patent Number

  3,751,420

• Date Filed

  Not available

• Date Issued

  Tuesday, August 7, 1973
  51 years ago

• CPC

  • C07D295/096 - with the ring nitrogen atoms and the oxygen or sulfur atoms separated by carbocyclic rings or by carbon chains interrupted by carbocyclic rings
  • C07C35/23 - with hydroxy on a condensed ring system having two rings
  • C07C35/34 - the condensed ring system being a (5.3.0.) system
  • C07C35/36 - the condensed ring system being a (4.4.0) system
  • C07D303/36 - with hydrocarbon radicals substituted by nitrogen atoms
  • C07D317/72 - spiro-condensed with carbocyclic rings
  • Y02P20/55 - Synthetic design

• US Classifications

  • 546 - Organic compounds
  • 250 - Radiant energy
  • 540 - Organic compounds
  • 544 - Organic compounds
  • 548 - Organic compounds
  • 549 - Organic compounds
  • 558 - Organic compounds
  • 560 - Organic compounds
  • 564 - Organic compounds