3819812

Information

• Patent Grant
• 3819812

• References
• Source

• Patent Number

  3,819,812

• Date Filed

  Not available

• Date Issued

  Tuesday, June 25, 1974
  50 years ago

• CPC

  • D21C11/0007 - Recovery of by-products
  • C01B17/48 - Sulfur dioxide Sulfurous acid
  • C01C1/08 - Preparation of ammonia from nitrogenous organic substances
  • C07C51/487 - by treatment giving rise to chemical modification

• US Classifications

  • 423 - Chemistry of inorganic compounds
  • 162 - Paper making and fiber liberation
  • 549 - Organic compounds
  • 562 - Organic compounds