3493060

Information

• Patent Grant
• 3493060

• References
• Source

• Patent Number

  3,493,060

• Date Filed

  Not available

• Date Issued

  Tuesday, February 3, 1970
  55 years ago

• CPC

  • B23K26/142 - for the removal of by-products
  • B23K26/123 - in an atmosphere of particular gases
  • B23K26/382 - by boring
  • B23K26/40 - taking account of the properties of the material involved
  • E21B7/15 - of electrically generated heat
  • E21B43/24 - using heat
  • E21C41/31 - for oil-bearing deposits
  • B23K2203/50 - Inorganic material

• US Classifications

  • 175 - Boring or penetrating the earth
  • 166 - Wells
  • 219 - Electric heating
  • 299 - Mining or in situ disintegration of hard material