3308253

Information

• Patent Grant
• 3308253

• References
• Source

• Patent Number

  3,308,253

• Date Filed

  Not available

• Date Issued

  Tuesday, March 7, 1967
  57 years ago

• CPC

  • H01H13/807 - characterised by the spatial arrangement of the contact sites
  • F16B21/20 - for bolts or shafts without holes, grooves, or notches for locking members
  • H01H13/702 - with contacts carried by or formed from layers in a multilayer structure
  • H01H13/785 - characterised by the material of the contacts
  • H01H13/80 - characterised by the manner of cooperation of the contacts
  • H01H2201/004 - Wiping action
  • H01H2201/03 - Composite
  • H01H2209/002 - Materials
  • H01H2209/014 - composed of different layers Lubricant in between
  • H01H2217/016 - Pressure reduction membrane Spreader layer
  • H01H2217/026 - Pencil operated
  • H01H2223/034 - Bezel
  • H01H2225/002 - superimposed
  • H01H2227/002 - Layer thickness
  • H01H2227/018 - Printed contacts Metal foil
  • H01H2229/016 - Selective etching
  • H01H2231/034 - Coordinate determination

• US Classifications

  • 200 - Electricity: circuit makers and breakers
  • 178 - Telegraphy
  • 235 - Registers
  • 341 - Coded data generation or conversion
  • 400 - Typewriting machines