3863709

Information

• Patent Grant
• 3863709

• References
• Source

• Patent Number

  3,863,709

• Date Filed

  Not available

• Date Issued

  Tuesday, February 4, 1975
  50 years ago

• CPC

  • F24J3/085 - by injecting a working fluid directly into the ground or by using underground water
  • E21B43/17 - Interconnecting two or more wells by fracturing or otherwise attacking the formation
  • Y02E10/14 - Systems injecting medium directly into ground
  • Y10S159/902 - using natural heat

• US Classifications

  • 165 - Heat exchange
  • 159 - Concentrating evaporators
  • 166 - Wells
  • 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing