3477509

Information

• Patent Grant
• 3477509

• References
• Source

• Patent Number

  3,477,509

• Date Filed

  Not available

• Date Issued

  Tuesday, November 11, 1969
  55 years ago

• CPC

  • F17C3/005 - Underground or underwater containers or vessels
  • B65G5/00 - Storing fluids in natural or artificial cavities or chambers in the earth
  • F17C2201/052 - large (>1000 m3)
  • F17C2221/033 - Methane
  • F17C2223/0161 - cryogenic
  • F17C2223/033 - Small pressure
  • F17C2227/0135 - Pumps
  • F17C2227/044 - by purging
  • F17C2270/0128 - Storage in depth
  • F17C2270/0155 - by using natural cavities

• US Classifications

  • 166 - Wells
  • 405 - Hydraulic and earth engineering