3421994

Information

• Patent Grant
• 3421994

• References
• Source

• Patent Number

  3,421,994

• Date Filed

  Not available

• Date Issued

  Tuesday, January 14, 1969
  56 years ago

• CPC

  • C25B9/146 - of the vertical type
  • H01M8/00 - Fuel cells Manufacture thereof
  • Y02E60/50 - Fuel cells

• US Classifications

  • 204 - Chemistry: electrical and wave energy
  • 429 - Chemistry: electrical current producing apparatus, product, and process