3842914

Information

• Patent Grant
• 3842914

• References
• Source

• Patent Number

  3,842,914

• Date Filed

  Not available

• Date Issued

  Tuesday, October 22, 1974
  50 years ago

• CPC

  • E21B17/06 - Releasing-joints
  • Y10S285/922 - Safety and quick release for drill pipes

• US Classifications

  • 166 - Wells
  • 175 - Boring or penetrating the earth
  • 285 - Pipe joints or couplings