3780496

Information

• Patent Grant
• 3780496

• References
• Source

• Patent Number

  3,780,496

• Date Filed

  Not available

• Date Issued

  Tuesday, December 25, 1973
  51 years ago

• CPC

  • C01B23/0047 - characterised by the membrane
  • B01D53/228 - characterised by specific membranes
  • B01D71/52 - Polyethers
  • C01B3/503 - characterised by the membrane
  • C01B13/0255 - characterised by the type of membrane
  • C01B2203/0405 - Purification by membrane separation
  • C01B2203/047 - the impurety being carbon monoxide
  • C01B2203/048 - the impurety being an organic compound
  • C01B2210/0031 - Helium
  • C01B2210/0068 - Organic compounds

• US Classifications

  • 095 - Gas separation: processes