3647521

Information

• Patent Grant
• 3647521

• References
• Source

• Patent Number

  3,647,521

• Date Filed

  Not available

• Date Issued

  Tuesday, March 7, 1972
  52 years ago

• CPC

  • B01D61/08 - Apparatus therefor
  • B01D63/061 - Manufacturing thereof
  • B01D63/063 - on the inner surface thereof
  • B01D65/025 - Removal of membrane elements before washing
  • B01D71/12 - Cellulose derivatives
  • B01D2323/40 - in-situ membrane formation

• US Classifications

  • 427 - Coating processes
  • 210 - Liquid purification or separation
  • 264 - Plastic and nonmetallic article shaping or treating: processes