2490993

Information

• Patent Grant
• 2490993

• References
• Source

• Patent Number

  2,490,993

• Date Filed

  Not available

• Date Issued

  Tuesday, December 13, 1949
  75 years ago

• CPC

  • C10G11/18 - according to the "fluidised-bed" technique
  • B01J8/189 - moving downwards in a zig-zag manner

• US Classifications

  • 208 - Mineral oils: processes and products
  • 034 - Drying and gas or vapor contact with solids
  • 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing
  • 502 - Catalyst, solid sorbent, or support therefor: product or process of making