1665237

Information

• Patent Grant
• 1665237

• References
• Source

• Patent Number

  1,665,237

• Date Filed

  Not available

• Date Issued

  Tuesday, April 10, 1928
  96 years ago

• CPC

  • C08G16/0256 - containing oxygen in the ring

• US Classifications

  • 528 - Synthetic resins or natural rubbers
  • 549 - Organic compounds