2340706

Information

• Patent Grant
• 2340706

• References
• Source

• Patent Number

  2,340,706

• Date Filed

  Not available

• Date Issued

  Tuesday, February 1, 1944
  80 years ago

• CPC

  • F16L15/001 - with conical threads
  • E21B17/08 - Casing joints
  • Y10S76/02 - Case hardening
  • Y10S285/916 - Molecular change
  • Y10S411/914 - Coated bolt
  • Y10T29/49995 - Shaping one-piece blank by removing material

• US Classifications

  • 285 - Pipe joints or couplings
  • 029 - Metal working
  • 076 - Metal tools and implements, making
  • 138 - Pipes and tubular conduits
  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener