3900487

Information

• Patent Grant
• 3900487

• References
• Source

• Patent Number

  3,900,487

• Date Filed

  Not available

• Date Issued

  Tuesday, August 19, 1975
  49 years ago

• CPC

  • C07D501/08 - by forming the ring or condensed ring systems
  • Y02P20/55 - Synthetic design

• US Classifications

  • 540 - Organic compounds