2971877

Information

• Patent Grant
• 2971877

• References
• Source

• Patent Number

  2,971,877

• Date Filed

  Not available

• Date Issued

  Tuesday, February 14, 1961
  64 years ago

• CPC

  • D21H13/48 - Metal or metallised fibres
  • D21H5/1281 - by chemical treatment
  • D21H13/12 - from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D21H13/40 - vitreous
  • D21H25/02 - Chemical or biochemical treatment

• US Classifications

  • 162 - Paper making and fiber liberation