3918379

Information

• Patent Grant
• 3918379

• References
• Source

• Patent Number

  3,918,379

• Date Filed

  Not available

• Date Issued

  Tuesday, November 11, 1975
  49 years ago

• CPC

  • E21C50/02 - dependent on the ship movements
  • B63B35/4413 - Floating drilling platforms
  • E21B19/09 - specially adapted for drilling underwater formations from a floating support using heave compensators supporting the drill string

• US Classifications

  • 114 - Ships
  • 175 - Boring or penetrating the earth