1564584

Information

• Patent Grant
• 1564584

• References
• Source

• Patent Number

  1,564,584

• Date Filed

  Not available

• Date Issued

  Tuesday, December 8, 1925
  99 years ago

• CPC

  • C09B3/54 - Preparation from starting materials already containing the dibenzopyrenequinone nucleus

• US Classifications

  • 552 - Organic compounds