3877342

Information

• Patent Grant
• 3877342

• References
• Source

• Patent Number

  3,877,342

• Date Filed

  Not available

• Date Issued

  Tuesday, April 15, 1975
  49 years ago

• CPC

  • F16B13/065 - fastened by extracting the screw, nail or the like
  • F16B12/14 - using threaded bolts or screws
  • F16B13/0866 - with prongs penetrating into the wall of the hole by a retractile movement of a threaded member
  • F16B37/044 - Nut cages

• US Classifications

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