2219823

Information

• Patent Grant
• 2219823

• References
• Source

• Patent Number

  2,219,823

• Date Filed

  Not available

• Date Issued

  Tuesday, October 29, 1940
  84 years ago

• CPC

  • E05F1/1253 - with a compression spring
  • E05Y2900/531 - Doors
  • Y10S16/07 - Door opening apparatus
  • Y10S16/36 - Spring
  • Y10T16/625 - Spring

• US Classifications

  • 016 - Miscellaneous hardware