3666644

Information

• Patent Grant
• 3666644

• References
• Source

• Patent Number

  3,666,644

• Date Filed

  Not available

• Date Issued

  Tuesday, May 30, 1972
  52 years ago

• CPC

  • C07D233/94 - with hydrocarbon radicals, substituted by oxygen or sulfur atoms, attached to other ring members
  • C07D233/93 - with hydrocarbon radicals, substituted by halogen atoms, attached to other ring members

• US Classifications

  • 548 - Organic compounds
  • 204 - Chemistry: electrical and wave energy