2251558

Information

• Patent Grant
• 2251558

• References
• Source

• Patent Number

  2,251,558

• Date Filed

  Not available

• Date Issued

  Tuesday, August 5, 1941
  83 years ago

• CPC

  • C09B3/12 - Dibenzanthronyls
  • C09B3/22 - Dibenzanthrones Isodibenzanthrones

• US Classifications

  • 552 - Organic compounds