3729770

Information

• Patent Grant
• 3729770

• References
• Source

• Patent Number

  3,729,770

• Date Filed

  Not available

• Date Issued

  Tuesday, May 1, 1973
  51 years ago

• CPC

  • E05C17/28 - with braking, clamping or securing means at the connection to the guide member
  • E05B47/00 - Operating or controlling locks or other fastening devices by electric or magnetic means
  • E05F3/222 - electrically operated
  • E05F2003/228 - Arrangements where the end of the closer arm is sliding in a track
  • E05Y2201/462 - Electromagnets
  • E05Y2900/132 - Doors
  • Y10T16/22 - Thermally released check or closer
  • Y10T16/27 - Checks and closers
  • Y10T292/294 - Sliding catch

• US Classifications

  • 016 - Miscellaneous hardware
  • 049 - Movable or removable closures
  • 292 - Closure fasteners