3721550

Information

• Patent Grant
• 3721550

• References
• Source

• Patent Number

  3,721,550

• Date Filed

  Not available

• Date Issued

  Tuesday, March 20, 1973
  52 years ago

• CPC

  • H01H1/0203 - specially adapted for vacuum switches
  • B22F3/26 - Impregnating
  • H01H2001/0208 - containing rhenium
  • Y10S428/929 - Electrical contact feature
  • Y10T428/1216 - Continuous interengaged phases of plural metals, or oriented fiber containing

• US Classifications

  • 419 - Powder metallurgy processes
  • 428 - Stock material or miscellaneous articles