3033720

Information

• Patent Grant
• 3033720

• References
• Source

• Patent Number

  3,033,720

• Date Filed

  Not available

• Date Issued

  Tuesday, May 8, 1962
  62 years ago

• CPC

  • D21H27/26 - characterised by the overlay sheet or the top layers of the structures
  • B32B27/00 - Layered products comprising a layer of synthetic resin
  • C07D307/46 - Doubly bound oxygen atoms, or two oxygen atoms singly bound to the same carbon atom
  • D21H17/49 - with compounds containing hydrogen bound to nitrogen
  • D21H21/143 - Agents preventing ageing of paper
  • Y10T428/31964 - Paper

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 162 - Paper making and fiber liberation
  • 252 - Compositions
  • 524 - Synthetic resins or natural rubbers
  • 549 - Organic compounds