3921494

Information

• Patent Grant
• 3921494

• References
• Source

• Patent Number

  3,921,494

• Date Filed

  Not available

• Date Issued

  Tuesday, November 25, 1975
  49 years ago

• CPC

  • F16B21/10 - by separate parts
  • Y10S292/11 - Cover fasteners
  • Y10S411/919 - Screw having driving contacts
  • Y10T292/1037 - Pivoted end

• US Classifications

  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
  • 081 - Tools
  • 292 - Closure fasteners
  • 404 - Road structure, process, or apparatus