2639458

Information

• Patent Grant
• 2639458

• References
• Source

• Patent Number

  2,639,458

• Date Filed

  Not available

• Date Issued

  Tuesday, May 26, 1953
  71 years ago

• CPC

  • E05C17/203 - concealed
  • Y10S16/07 - Door opening apparatus
  • Y10T16/27 - Checks and closers
  • Y10T16/5385 - having means to hold hinged members against pivotal movement about hinge axis [e.g., catch]
  • Y10T16/53885 - to counterbalance weight of hinged member [e.g., horizontal closure biased to open position]
  • Y10T16/6295 - Link type
  • Y10T292/285 - Notched bar

• US Classifications

  • 016 - Miscellaneous hardware
  • 292 - Closure fasteners