3516488

Information

• Patent Grant
• 3516488

• References
• Source

• Patent Number

  3,516,488

• Date Filed

  Not available

• Date Issued

  Tuesday, June 23, 1970
  54 years ago

• CPC

  • E21B17/017 - Bend restrictors for limiting stress on risers
  • B63C11/38 - with entrance above water surface
  • E21B7/128 - from floating support with independent underwater anchored guide base
  • E21B19/09 - specially adapted for drilling underwater formations from a floating support using heave compensators supporting the drill string
  • E21B33/076 - specially adapted for underwater installations
  • E21B47/0001 - for underwater installations

• US Classifications

  • 166 - Wells
  • 175 - Boring or penetrating the earth