3720573

Information

• Patent Grant
• 3720573

• References
• Source

• Patent Number

  3,720,573

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1973
  52 years ago

• CPC

  • B32B38/08 - Impregnating
  • B32B29/00 - Layered products comprising a layer of paper or cardboard
  • D21H25/06 - of impregnated or coated paper
  • D21H27/30 - Multi-ply
  • D21H27/40 - at least one of the sheets being non-planar
  • D21H17/06 - Alcohols Phenols Ethers Aldehydes Ketones Acetals Ketals
  • D21H21/18 - Reinforcing agents
  • D21H23/42 - Paper being at least partly surrounded by the material on both sides
  • D21H23/56 - Rolls
  • Y10T156/1712 - Indefinite or running length work
  • Y10T428/31906 - Ester, halide or nitrile of addition polymer
  • Y10T428/31909 - Next to second addition polymer from unsaturated monomers

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 156 - Adhesive bonding and miscellaneous chemical manufacture