2940787

Information

• Patent Grant
• 2940787

• References
• Source

• Patent Number

  2,940,787

• Date Filed

  Not available

• Date Issued

  Tuesday, June 14, 1960
  65 years ago

• CPC

  • F16L25/021 - for screw-threaded joints
  • E21B17/042 - threaded
  • Y10S411/914 - Coated bolt
  • Y10S411/947 - Elastic-gripping action
  • Y10T29/49885 - with coating before or during assembling
  • Y10T403/297 - Differential pitch, similar hand

• US Classifications

  • 403 - Joints and connections
  • 029 - Metal working
  • 174 - Electricity: conductors and insulators
  • 285 - Pipe joints or couplings
  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener