3850338

Information

• Patent Grant
• 3850338

• References
• Source

• Patent Number

  3,850,338

• Date Filed

  Not available

• Date Issued

  Tuesday, November 26, 1974
  50 years ago

• CPC

  • B65D7/42 - Details of metal walls
  • B65D17/163 - for opening completely by means of a tearing tab
  • B65D17/24 - Lines of weakness
  • Y10S220/907 - Collapsible

• US Classifications

  • 220 - Receptacles
  • 229 - Envelopes, wrappers, and paperboard boxes