3521744

Information

• Patent Grant
• 3521744

• References
• Source

• Patent Number

  3,521,744

• Date Filed

  Not available

• Date Issued

  Tuesday, July 28, 1970
  54 years ago

• CPC

  • B65D85/64 - for bulky articles
  • B65D5/446 - Wooden reinforcements
  • B65D2585/644 - bathtubs
  • B65D2585/681 - heaters

• US Classifications

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