2380022

Information

• Patent Grant
• 2380022

• References
• Source

• Patent Number

  2,380,022

• Date Filed

  Not available

• Date Issued

  Tuesday, July 10, 1945
  79 years ago

• CPC

  • E21B34/14 - operated by movement of tools
  • E21B33/146 - Stage cementing
  • Y10T137/5438 - Valve actuator outside riser

• US Classifications

  • 166 - Wells
  • 137 - Fluid handling
  • 251 - Valves and valve actuation