1997305

Information

• Patent Grant
• 1997305

• References
• Source

• Patent Number

  1,997,305

• Date Filed

  Not available

• Date Issued

  Tuesday, April 9, 1935
  89 years ago

• CPC

  • C07C49/617 - a keto group being part of a condensed ring system
  • C07C65/36 - containing rings other than six-membered aromatic rings

• US Classifications

  • 568 - Organic compounds
  • 549 - Organic compounds