3929977

Information

• Patent Grant
• 3929977

• References
• Source

• Patent Number

  3,929,977

• Date Filed

  Not available

• Date Issued

  Tuesday, December 30, 1975
  49 years ago

• CPC

  • C01C1/028 - from ammonium sulfate or sulfite

• US Classifications

  • 423 - Chemistry of inorganic compounds