3440023

Information

• Patent Grant
• 3440023

• References
• Source

• Patent Number

  3,440,023

• Date Filed

  Not available

• Date Issued

  Tuesday, April 22, 1969
  55 years ago

• CPC

  • C05D1/04 - from minerals or volcanic rocks
  • C01D3/08 - Preparation by working up natural or industrial salt mixtures or siliceous minerals

• US Classifications

  • 023 - Chemistry: physical processes