2643252

Information

• Patent Grant
• 2643252

• References
• Source

• Patent Number

  2,643,252

• Date Filed

  Not available

• Date Issued

  Tuesday, June 23, 1953
  71 years ago

• CPC

  • C07D237/36 - Benzo-cinnolines

• US Classifications

  • 544 - Organic compounds
  • 252 - Compositions
  • 564 - Organic compounds
  • 568 - Organic compounds