3860771

Information

• Patent Grant
• 3860771

• References
• Source

• Patent Number

  3,860,771

• Date Filed

  Not available

• Date Issued

  Tuesday, January 14, 1975
  50 years ago

• CPC

  • H01H13/785 - characterised by the material of the contacts
  • H01H1/029 - comprising conducting material dispersed in an elastic support or binding material
  • H01H13/702 - with contacts carried by or formed from layers in a multilayer structure
  • H01H2201/026 - non precious
  • H01H2201/032 - Conductive polymer Rubber
  • H01H2205/002 - fixed to operating part
  • H01H2207/012 - via underside of substrate
  • H01H2209/002 - Materials
  • H01H2215/002 - Longer travel
  • H01H2215/006 - Only mechanical function
  • H01H2215/008 - Part of substrate or membrane
  • H01H2219/028 - Printed information
  • H01H2223/036 - forming chamfered apertures for keys
  • H01H2227/002 - Layer thickness
  • H01H2227/012 - Conductive rubber
  • H01H2227/022 - Collapsable dome
  • H01H2229/026 - Riveting
  • H01H2229/032 - Screw
  • H01H2229/05 - Forming Half-punching

• US Classifications

  • 200 - Electricity: circuit makers and breakers
  • 235 - Registers
  • 400 - Typewriting machines