1841964

Information

• Patent Grant
• 1841964

• References
• Source

• Patent Number

  1,841,964

• Date Filed

  Not available

• Date Issued

  Tuesday, January 19, 1932
  93 years ago

• CPC

  • C09B3/74 - Preparation from starting materials already containing the benzo, naphtho-, or anthradianthrone nucleus

• US Classifications

  • 552 - Organic compounds