3840035

Information

• Patent Grant
• 3840035

• References
• Source

• Patent Number

  3,840,035

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1974
  50 years ago

• CPC

  • E21B36/003 - Insulating arrangements
  • F16L1/026 - in or on a frozen surface
  • F17D1/16 - Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity
  • Y10S166/901 - Wells in frozen terrain
  • Y10T137/0391 - Affecting flow by the addition of material or energy

• US Classifications

  • 137 - Fluid handling
  • 062 - Refrigeration
  • 165 - Heat exchange
  • 166 - Wells