3648326

Information

• Patent Grant
• 3648326

• References
• Source

• Patent Number

  3,648,326

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1972
  52 years ago

• CPC

  • E05F3/222 - electrically operated
  • E05F2003/228 - Arrangements where the end of the closer arm is sliding in a track
  • E05Y2201/462 - Electromagnets
  • E05Y2201/474 - Compression springs
  • E05Y2900/132 - Doors
  • Y10T16/22 - Thermally released check or closer
  • Y10T292/294 - Sliding catch

• US Classifications

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