2253811

Information

• Patent Grant
• 2253811

• References
• Source

• Patent Number

  2,253,811

• Date Filed

  Not available

• Date Issued

  Tuesday, August 26, 1941
  83 years ago

• CPC

  • C07C65/105 - polycyclic
  • C07C51/15 - by reaction of organic compounds with carbon dioxide
  • C07C65/05 - o-Hydrocy carboxylic acids
  • C07C65/11 - with carboxyl groups on a condensed ring system containing two rings
  • C07C65/15 - with carboxyl groups on a condensed ring system containing more than two rings

• US Classifications

  • 562 - Organic compounds