3661321

Information

• Patent Grant
• 3661321

• References
• Source

• Patent Number

  3,661,321

• Date Filed

  Not available

• Date Issued

  Tuesday, May 9, 1972
  52 years ago

• CPC

  • B65D5/0263 - with end closures formed by inward folding of flaps, three of them being formed of a continuous strip, the fourth being a separate flap
  • B65D5/701 - Tearable flaps defined by score-lines or incisions provided in the closure flaps of a tubular container made of a single blank

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes