3857144

Information

• Patent Grant
• 3857144

• References
• Source

• Patent Number

  3,857,144

• Date Filed

  Not available

• Date Issued

  Tuesday, December 31, 1974
  50 years ago

• CPC

  • B31B1/80 - pneumatically
  • B29C59/046 - for layered or coated substantially flat surfaces
  • B31B19/88 - Printing or embossing
  • B65D33/002 - Rolls, strips or like assemblies of bags
  • B65D33/007 - for facilitating the separation of the two walls
  • B31B2201/287 - pneumatically
  • B31B2219/88 - Printing or embossing
  • Y10T156/1007 - Running or continuous length work
  • Y10T156/1023 - Surface deformation only [e.g., embossing]
  • Y10T156/1041 - Subsequent to lamination
  • Y10T428/1334 - Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
  • Y10T428/15 - Sheet, web, or layer weakened to permit separation through thickness
  • Y10T428/24678 - Waffle-form

• US Classifications

  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 383 - Flexible bags
  • 428 - Stock material or miscellaneous articles