3717703

Information

• Patent Grant
• 3717703

• References
• Source

• Patent Number

  3,717,703

• Date Filed

  Not available

• Date Issued

  Tuesday, February 20, 1973
  51 years ago

• CPC

  • C02F9/00 - Multistage treatment of water, waste water, or sewage
  • C01B17/06 - from non-gaseous sulfides or materials containing such sulfides
  • C01B17/44 - by reduction of sulfates
  • C02F1/16 - using waste heat from other processes
  • C02F2101/20 - Heavy metals or heavy metal compounds
  • Y10S425/002 - Air support

• US Classifications

  • 423 - Chemistry of inorganic compounds
  • 210 - Liquid purification or separation
  • 425 - Plastic article or earthenware shaping or treating: apparatus