2277580

Information

• Patent Grant
• 2277580

• References
• Source

• Patent Number

  2,277,580

• Date Filed

  Not available

• Date Issued

  Tuesday, March 24, 1942
  82 years ago

• CPC

  • E21B29/007 - with a radially-retracting cutter rotating outside the pipe
  • E21B31/00 - Fishing for or freeing objects in boreholes or wells
  • E21B31/16 - combined with cutting or destroying means

• US Classifications

  • 166 - Wells