3305435

Information

• Patent Grant
• 3305435

• References
• Source

• Patent Number

  3,305,435

• Date Filed

  Not available

• Date Issued

  Tuesday, February 21, 1967
  57 years ago

• CPC

  • D21H17/23 - Lignins
  • D21H17/01 - Waste products

• US Classifications

  • 162 - Paper making and fiber liberation
  • 264 - Plastic and nonmetallic article shaping or treating: processes