3804164

Information

• Patent Grant
• 3804164

• References
• Source

• Patent Number

  3,804,164

• Date Filed

  Not available

• Date Issued

  Tuesday, April 16, 1974
  50 years ago

• CPC

  • E21B33/1291 - anchor set by wedge or cam in combination with frictional effect, using so-called drag-blocks
  • E21B33/12955 - using drag blocks frictionally engaging the inner wall of the well

• US Classifications

  • 166 - Wells