820502

Information

• Patent Grant
• 820502

• References
• Source

• Patent Number

  820,502

• Date Filed

  Not available

• Date Issued

  Tuesday, May 15, 1906
  118 years ago

• CPC

  • A44B17/0011 - Press-button fasteners in which the elastic retaining action is obtained by a spring working in the plane of the fastener
  • A62C3/004 - for freezing warehouses and storages
  • Y10S411/913 - Self-expanding anchor
  • Y10T16/10 - Carpet fasteners
  • Y10T16/127 - Sliding

• US Classifications

  • 016 - Miscellaneous hardware
  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener