3213890

Information

• Patent Grant
• 3213890

• References
• Source

• Patent Number

  3,213,890

• Date Filed

  Not available

• Date Issued

  Tuesday, October 26, 1965
  59 years ago

• CPC

  • F16L9/121 - with three layers
  • B29C47/026 - partially
  • B29C65/40 - Applying molten plastics
  • B29C66/1122 - Single lap to lap joints
  • B29C66/4322 - by joining a single sheet to itself
  • B29C66/7234 - comprising a barrier layer
  • B31F1/0048 - Bending plates, sheets or webs at right angles to the axis of the article being formed and joining the edges
  • B31F5/04 - by exclusive use of adhesives
  • B31F7/006 - edges
  • B29C47/0023 - Hollow rigid articles having only one tubular passage
  • B29C53/36 - Bending and joining
  • B29C65/405 - characterised by the composition of the applied molten plastics
  • B29C66/71 - characterised by the composition of the plastics material of the parts to be joined
  • B29C66/72321 - consisting of metals or their alloys
  • B29C66/72328 - Paper
  • B29C66/8322 - Joining or pressing tools reciprocating along one axis
  • B29K2711/123 - Coated
  • B31B2201/621 - Coating or impregnating edges or corners
  • Y10S229/941 - Box having joint structure for preventing leakage

• US Classifications

  • 138 - Pipes and tubular conduits
  • 229 - Envelopes, wrappers, and paperboard boxes