2277778

Information

• Patent Grant
• 2277778

• References
• Source

• Patent Number

  2,277,778

• Date Filed

  Not available

• Date Issued

  Tuesday, March 31, 1942
  82 years ago

• CPC

  • C01D5/04 - Preparation of sulfates with the aid of sulfurous acid or sulfites

• US Classifications

  • 423 - Chemistry of inorganic compounds
  • 023 - Chemistry: physical processes