3502257

Information

• Patent Grant
• 3502257

• References
• Source

• Patent Number

  3,502,257

• Date Filed

  Not available

• Date Issued

  Tuesday, March 24, 1970
  54 years ago

• CPC

  • B65D5/5445 - for dividing a tubular body into separate parts
  • B65D17/24 - Lines of weakness
  • Y10S229/925 - Finger opening
  • Y10S229/926 - Pull tab located in a seam

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes
  • 235 - Registers