1443521

Information

• Patent Grant
• 1443521

• References
• Source

• Patent Number

  1,443,521

• Date Filed

  Not available

• Date Issued

  Tuesday, January 30, 1923
  101 years ago

• CPC

  • E05D15/12 - consisting of parts connected at their edges
  • E05Y2900/132 - Doors
  • Y10T16/3828 - Swinging

• US Classifications

  • 016 - Miscellaneous hardware
  • 049 - Movable or removable closures