3442693

Information

• Patent Grant
• 3442693

• References
• Source

• Patent Number

  3,442,693

• Date Filed

  Not available

• Date Issued

  Tuesday, May 6, 1969
  55 years ago

• CPC

  • C04B33/1305 - Organic additives
  • C04B33/13 - Compounding ingredients
  • C04B41/009 - characterised by the material treated
  • C04B41/5105 - with a composition mainly composed of one or more of the noble metals or copper
  • C04B41/88 - Metals
  • H01T21/02 - of sparking plugs
  • Y10T428/26 - Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 313 - Electric lamp and discharge devices
  • 427 - Coating processes
  • 445 - Electric lamp or space discharge component or device manufacturing
  • 501 - Compositions: ceramic