3077631

Information

• Patent Grant
• 3077631

• References
• Source

• Patent Number

  3,077,631

• Date Filed

  Not available

• Date Issued

  Tuesday, February 19, 1963
  61 years ago

• CPC

  • E06B3/44 - Vertically-sliding wings
  • E06B2003/4453 - Metal
  • Y10T16/64 - Spring
  • Y10T16/65 - Sash-cord fasteners

• US Classifications

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