3848927

Information

• Patent Grant
• 3848927

• References
• Source

• Patent Number

  3,848,927

• Date Filed

  Not available

• Date Issued

  Tuesday, November 19, 1974
  50 years ago

• CPC

  • E21C37/16 - by fire-setting or by similar methods based on a heat effect
  • E21C41/26 - Methods of surface mining Layouts therefor
  • E21C41/31 - for oil-bearing deposits
  • E21C41/32 - Reclamation of surface-mined areas
  • F42D1/00 - Blasting methods or apparatus

• US Classifications

  • 299 - Mining or in situ disintegration of hard material