2570523

Information

• Patent Grant
• 2570523

• References
• Source

• Patent Number

  2,570,523

• Date Filed

  Not available

• Date Issued

  Tuesday, October 9, 1951
  73 years ago

• CPC

  • E06B3/44 - Vertically-sliding wings
  • E06B2003/4453 - Metal
  • E06B2003/4492 - provided with screens
  • Y10T16/635 - Sash and cord

• US Classifications

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