3261539

Information

• Patent Grant
• 3261539

• References
• Source

• Patent Number

  3,261,539

• Date Filed

  Not available

• Date Issued

  Tuesday, July 19, 1966
  58 years ago

• CPC

  • B65D27/34 - Lines of weakness
  • B65D27/32 - Opening devices incorporated during envelope manufacture

• US Classifications

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