3487990

Information

• Patent Grant
• 3487990

• References
• Source

• Patent Number

  3,487,990

• Date Filed

  Not available

• Date Issued

  Tuesday, January 6, 1970
  55 years ago

• CPC

  • B65D15/04 - with curved, or partially curved, walls made by winding or bending paper

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes