1684980

Information

• Patent Grant
• 1684980

• References
• Source

• Patent Number

  1,684,980

• Date Filed

  Not available

• Date Issued

  Tuesday, September 18, 1928
  96 years ago

• CPC

  • E05B51/02 - by pneumatic or hydraulic means
  • Y10S70/48 - Fluid pressure lock
  • Y10T70/5173 - Sliding door
  • Y10T70/5181 - Rigid or fixed
  • Y10T70/7051 - Using a powered device [e.g., motor]
  • Y10T70/7124 - Retracted electrically only
  • Y10T292/1021 - Motor
  • Y10T292/699 - Motor controlled

• US Classifications

  • 070 - Locks
  • 049 - Movable or removable closures
  • 169 - Fire extinguishers
  • 292 - Closure fasteners