2389678

Information

• Patent Grant
• 2389678

• References
• Source

• Patent Number

  2,389,678

• Date Filed

  Not available

• Date Issued

  Tuesday, November 27, 1945
  79 years ago

• CPC

  • C04B30/02 - containing fibrous materials
  • C04B20/0008 - Materials specified by a shape not covered by C04B20/0016 - C04B20/0056
  • D21H17/68 - siliceous
  • Y02W30/97 - Vegetable refuse

• US Classifications

  • 162 - Paper making and fiber liberation
  • 106 - Compositions: coating or plastic