2820981

Information

• Patent Grant
• 2820981

• References
• Source

• Patent Number

  2,820,981

• Date Filed

  Not available

• Date Issued

  Tuesday, January 28, 1958
  67 years ago

• CPC

  • E05F1/1066 - with a traction spring
  • Y10S24/51 - including receiving member having cavity and mating member having insertable projection guided to interlock thereby
  • Y10T16/287 - Spring and flexible link
  • Y10T16/568 - Spring and flexible link
  • Y10T292/283 - Chain

• US Classifications

  • 016 - Miscellaneous hardware
  • 024 - Buckles, buttons, clasps, etc.
  • 059 - Chain, staple, and horseshoe making
  • 292 - Closure fasteners