2611436

Information

• Patent Grant
• 2611436

• References
• Source

• Patent Number

  2,611,436

• Date Filed

  Not available

• Date Issued

  Tuesday, September 23, 1952
  72 years ago

• CPC

  • E21B33/1277 - characterised by the construction or fixation of the sleeve
  • E21B33/1243 - with inflatable sleeves
  • E21B43/16 - Enhanced recovery methods for obtaining hydrocarbons
  • Y10T137/2968 - Liquid control valve positively actuated

• US Classifications

  • 166 - Wells
  • 137 - Fluid handling