2219821

Information

• Patent Grant
• 2219821

• References
• Source

• Patent Number

  2,219,821

• 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
  • Y10T16/27 - Checks and closers
  • Y10T16/625 - Spring

• US Classifications

  • 016 - Miscellaneous hardware