1806020

Information

• Patent Grant
• 1806020

• References
• Source

• Patent Number

  1,806,020

• Date Filed

  Not available

• Date Issued

  Tuesday, May 19, 1931
  94 years ago

• CPC

  • B01J20/12 - Naturally occurring clays or bleaching earth
  • Y10S159/36 - Rabbled hearth

• US Classifications

  • 502 - Catalyst, solid sorbent, or support therefor: product or process of making
  • 159 - Concentrating evaporators
  • 208 - Mineral oils: processes and products