3890426

Information

• Patent Grant
• 3890426

• References
• Source

• Patent Number

  3,890,426

• Date Filed

  Not available

• Date Issued

  Tuesday, June 17, 1975
  49 years ago

• CPC

  • C01F7/0686 - from sulfate-containing minerals

• US Classifications

  • 423 - Chemistry of inorganic compounds