2639902

Information

• Patent Grant
• 2639902

• References
• Source

• Patent Number

  2,639,902

• Date Filed

  Not available

• Date Issued

  Tuesday, May 26, 1953
  71 years ago

• CPC

  • C05F17/0252 - the material going from platform to platform
  • Y02P20/145 - the feedstock being materials of biological origin
  • Y02W30/43 - Aerobic fermentation

• US Classifications

  • 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing
  • 034 - Drying and gas or vapor contact with solids
  • 071 - Chemistry: fertilizers
  • 210 - Liquid purification or separation
  • 366 - Agitating