1913491

Information

• Patent Grant
• 1913491

• References
• Source

• Patent Number

  1,913,491

• Date Filed

  Not available

• Date Issued

  Tuesday, June 13, 1933
  91 years ago

• CPC

  • C07C65/15 - with carboxyl groups on a condensed ring system containing more than two rings

• US Classifications

  • 562 - Organic compounds