ELECTRIC CELL WITH GAS PERMEABLE VENT STOPPER

• US 3,507,708 A
• Filed: 09/19/1967
• Issued: 04/21/1970
• Est. Priority Date: 09/22/1966
• Status: Expired due to Term

• Current Assignee: Vignaud Rene
• Original Assignee: Vignaud Rene
• Inventors: VIGNAUD RENE
• Application Number:
  US04/668,828
• Time in Patent Office: 945 Days
• US Class Current: 429/86
• CPC Class Codes: H01M 50/30 Arrangements for facilitating escape of gases
• CPC Class Codes: H01M 50/308 Detachable arrangements, e.g. detachable vent plugs or plug systems
• CPC Class Codes: H01M 50/394 Gas-pervious parts or elements
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Claims