3581971

Information

• Patent Grant
• 3581971

• References
• Source

• Patent Number

  3,581,971

• Date Filed

  Not available

• Date Issued

  Tuesday, June 1, 1971
  54 years ago

• CPC

  • B65D75/18 - the upstanding portion of the wrapper being closed by regular or irregular folds or pleats
  • B65D85/70 - for materials not otherwise provided for

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes
  • 206 - Special receptacle or package
  • 426 - Food or edible material: processes, compositions, and products