3700048

Information

• Patent Grant
• 3700048

• References
• Source

• Patent Number

  3,700,048

• Date Filed

  Not available

• Date Issued

  Tuesday, October 24, 1972
  52 years ago

• CPC

  • E21B7/12 - Underwater drilling
  • B63B35/4413 - Floating drilling platforms
  • E02B17/027 - steel structures
  • E21B3/045 - movably mounted on the drilling structure or platform
  • E21B7/124 - with underwater tool drive prime mover
  • E21B7/20 - Driving or forcing casings or pipes into boreholes
  • E21B17/01 - Risers
  • E21B41/06 - Work chambers for underwater operations

• US Classifications

  • 175 - Boring or penetrating the earth