3804706

Information

• Patent Grant
• 3804706

• References
• Source

• Patent Number

  3,804,706

• Date Filed

  Not available

• Date Issued

  Tuesday, April 16, 1974
  50 years ago

• CPC

  • C04B26/12 - Condensation polymers of aldehydes or ketones
  • D21H5/18 - of inorganic fibres with or without cellulose fibres
  • D21H13/36 - Inorganic fibres or flakes
  • D21H13/42 - Asbestos
  • D21H17/33 - Synthetic macromolecular compounds
  • D21H17/49 - with compounds containing hydrogen bound to nitrogen

• US Classifications

  • 162 - Paper making and fiber liberation