3104800

Information

• Patent Grant
• 3104800

• References
• Source

• Patent Number

  3,104,800

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1963
  61 years ago

• CPC

  • B42D15/08 - Letter-cards or letter-sheets
  • Y10S229/929 - Vented envelope

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes