3617807

Information

• Patent Grant
• 3617807

• References
• Source

• Patent Number

  3,617,807

• Date Filed

  Not available

• Date Issued

  Tuesday, November 2, 1971
  53 years ago

• CPC

  • H02H3/021 - concerning the disconnection itself
  • H01H33/004 - making use of superconducting contacts
  • H01H33/161 - Variable impedances
  • H01H33/285 - using electro-dynamic repulsion
  • H02H9/02 - responsive to excess current
  • H01H2033/163 - using PTC elements

• US Classifications

  • 361 - Electricity: electrical systems and devices