3927823

Information

• Patent Grant
• 3927823

• References
• Source

• Patent Number

  3,927,823

• Date Filed

  Not available

• Date Issued

  Tuesday, December 23, 1975
  49 years ago

• CPC

  • B65D5/248 - and at least one side being extended and doubled-over to enclose the adjacent gusset flaps
  • B65D5/2023 - the folded-up portions being folded along non-rectilinear fold-lines
  • B65D5/2038 - at least two opposed folded-up portions having a non-rectangular shape
  • Y10S229/903 - Ovenable
  • Y10S229/905 - Frozen food
  • Y10S229/93 - Fold detail

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes