3851997

Information

• Patent Grant
• 3851997

• References
• Source

• Patent Number

  3,851,997

• Date Filed

  Not available

• Date Issued

  Tuesday, December 3, 1974
  50 years ago

• CPC

  • E21B43/14 - Obtaining from a multiple-zone well
  • E21B43/122 - Gas lift
  • E21B43/123 - Gas lift valves
  • F04F1/18 - the fluid medium being mixed with, or generated from the liquid to be pumped
  • Y10T137/2695 - Responsive to outlet pressure

• US Classifications

  • 417 - Pumps
  • 137 - Fluid handling