3698980

Information

• Patent Grant
• 3698980

• References
• Source

• Patent Number

  3,698,980

• Date Filed

  Not available

• Date Issued

  Tuesday, October 17, 1972
  52 years ago

• CPC

  • D21H17/61 - Bitumen
  • D06N5/00 - Roofing materials comprising a fibrous web coated with bitumen or another polymer
  • D21H5/00 - Special paper or cardboard not otherwise provided for
  • D21H27/10 - Packing paper
  • D21H27/30 - Multi-ply
  • Y10T428/31823 - Paper

• US Classifications

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