3441517

Information

• Patent Grant
• 3441517

• References
• Source

• Patent Number

  3,441,517

• Date Filed

  Not available

• Date Issued

  Tuesday, April 29, 1969
  55 years ago

• CPC

  • H01C7/045 - Perowskites
  • C04B35/465 - based on alkaline earth metal titanates
  • H01C7/02 - having positive temperature coefficient
  • H01C7/025 - Perowskites
  • H01C7/046 - Iron oxides or ferrites
  • H01G4/1281 - with grain boundary layer

• US Classifications

  • 252 - Compositions
  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 338 - Electrical resistors
  • 361 - Electricity: electrical systems and devices
  • 501 - Compositions: ceramic