2647816

Information

• Patent Grant
• 2647816

• References
• Source

• Patent Number

  2,647,816

• Date Filed

  Not available

• Date Issued

  Tuesday, August 4, 1953
  71 years ago

• CPC

  • D21H19/00 - Coated paper Coating material
  • D01D10/0418 - as cakes or similar coreless thread packages
  • D04H1/54 - by welding together the fibres
  • D21H5/1281 - by chemical treatment
  • D21H13/06 - Cellulose esters
  • D21H25/02 - Chemical or biochemical treatment
  • D21H25/04 - Physical treatment
  • Y10T156/1038 - Hollow cylinder article

• US Classifications

  • 008 - Bleaching and dyeing
  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 206 - Special receptacle or package
  • 264 - Plastic and nonmetallic article shaping or treating: processes