2772899

Information

• Patent Grant
• 2772899

• References
• Source

• Patent Number

  2,772,899

• Date Filed

  Not available

• Date Issued

  Tuesday, December 4, 1956
  68 years ago

• CPC

  • F16B33/02 - Shape of thread Special thread-forms
  • E21B17/042 - threaded
  • E21B17/16 - Drill collars
  • F16B7/182 - for coaxial connections of two rods or tubes
  • Y10S285/916 - Molecular change

• US Classifications

  • 285 - Pipe joints or couplings
  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener