2219825

Information

• Patent Grant
• 2219825

• References
• Source

• Patent Number

  2,219,825

• Date Filed

  Not available

• Date Issued

  Tuesday, October 29, 1940
  84 years ago

• CPC

  • E05F1/1215 - with a canted-coil torsion spring
  • E05Y2900/531 - Doors
  • Y10S16/07 - Door opening apparatus
  • Y10T16/53885 - to counterbalance weight of hinged member [e.g., horizontal closure biased to open position]
  • Y10T16/53888 - On pintle

• US Classifications

  • 016 - Miscellaneous hardware