3617438

Information

• Patent Grant
• 3617438

• References
• Source

• Patent Number

  3,617,438

• Date Filed

  Not available

• Date Issued

  Tuesday, November 2, 1971
  53 years ago

• CPC

  • D21H11/04 - Kraft or sulfate pulp
  • D21H5/143 - grafted or encapsulated cellulose
  • D21H11/20 - Chemically or biochemically modified fibres
  • H01B3/485 - Other fibrous materials fabric

• US Classifications

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