2202448

Information

• Patent Grant
• 2202448

• References
• Source

• Patent Number

  2,202,448

• Date Filed

  Not available

• Date Issued

  Tuesday, May 28, 1940
  84 years ago

• CPC

  • C07D323/00 - Heterocyclic compounds containing more than two oxygen atoms as the only ring hetero atoms
  • C07D321/00 - Heterocyclic compounds containing rings having two oxygen atoms as the only ring hetero atoms, not provided for by groups C07D317/00 - C07D319/00
  • C07D321/04 - not condensed with other rings

• US Classifications

  • 549 - Organic compounds