2981272

Information

• Patent Grant
• 2981272

• References
• Source

• Patent Number

  2,981,272

• Date Filed

  Not available

• Date Issued

  Tuesday, April 25, 1961
  63 years ago

• CPC

  • H01M2/368 - by closing the vent passages with a valve
  • H01M2/1205 - Vent arrangements incorporated in vent plugs or multiplug systems detachable from the battery or cell

• US Classifications

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