3489740

Information

• Patent Grant
• 3489740

• References
• Source

• Patent Number

  3,489,740

• Date Filed

  Not available

• Date Issued

  Tuesday, January 13, 1970
  54 years ago

• CPC

  • C09F1/02 - Purification
  • C09F3/02 - as a by-product in the paper-pulping process
  • Y10S210/928 - Paper mill waste

• US Classifications

  • 530 - Chemistry: natural resins or derivatives
  • 210 - Liquid purification or separation