3386768

Information

• Patent Grant
• 3386768

• References
• Source

• Patent Number

  3,386,768

• Date Filed

  Not available

• Date Issued

  Tuesday, June 4, 1968
  56 years ago

• CPC

  • E21B43/281 - using heat
  • Y10S159/902 - using natural heat

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 023 - Chemistry: physical processes
  • 159 - Concentrating evaporators