3143280

Information

• Patent Grant
• 3143280

• References
• Source

• Patent Number

  3,143,280

• Date Filed

  Not available

• Date Issued

  Tuesday, August 4, 1964
  60 years ago

• CPC

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

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes