1380458

Information

• Patent Grant
• 1380458

• References
• Source

• Patent Number

  1,380,458

• Date Filed

  Not available

• Date Issued

  Tuesday, June 7, 1921
  103 years ago

• CPC

  • C01B31/02 - Preparation of carbon Purification; After-treatment
  • C01B31/0407 - Purification; Recovery or purification of graphite formed in iron making
  • C10L9/02 - by chemical means

• US Classifications

  • 423 - Chemistry of inorganic compounds