3140816

Information

• Patent Grant
• 3140816

• References
• Source

• Patent Number

  3,140,816

• Date Filed

  Not available

• Date Issued

  Tuesday, July 14, 1964
  60 years ago

• CPC

  • B42D5/025 - Mailer assemblies
  • Y10S229/929 - Vented envelope

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes