3580490

Information

• Patent Grant
• 3580490

• References
• Source

• Patent Number

  3,580,490

• Date Filed

  Not available

• Date Issued

  Tuesday, May 25, 1971
  53 years ago

• CPC

  • B65D27/36 - Finger openings, slots, or gripping tabs

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes
  • 206 - Special receptacle or package
  • 383 - Flexible bags