1822575

Information

• Patent Grant
• 1822575

• References
• Source

• Patent Number

  1,822,575

• Date Filed

  Not available

• Date Issued

  Tuesday, September 8, 1931
  93 years ago

• CPC

  • B65D5/28 - with extensions of sides permanently secured to adjacent sides, with sides permanently secured together by adhesive strips, or with sides held in place solely by rigidity of material
  • B65D5/2066 - Cooperating flaps fixed together by separate mechanical elements
  • B65D5/6638 - combined with flaps or tabs provided at the side edges of the lid-halves
  • B65D5/6647 - the lid-halves being held in closed position by application of separate elements

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes