2857346

Information

• Patent Grant
• 2857346

• References
• Source

• Patent Number

  2,857,346

• Date Filed

  Not available

• Date Issued

  Tuesday, October 21, 1958
  66 years ago

• CPC

  • C14C3/24 - using lignin derivatives

• US Classifications

  • 527 - Synthetic resins or natural rubbers
  • 528 - Synthetic resins or natural rubbers