3781523

Information

• Patent Grant
• 3781523

• References
• Source

• Patent Number

  3,781,523

• Date Filed

  Not available

• Date Issued

  Tuesday, December 25, 1973
  50 years ago

• CPC

  • H05B3/746 - Protection
  • C03C1/10 - to produce uniformly-coloured transparent products
  • C03C4/00 - Compositions for glass with special properties
  • C03C4/02 - for coloured glass
  • C03C10/0027 - containing SiO2, Al2O3, Li2O as main constituents
  • C03C14/006 - the non-glass component being in the form of microcrystallites
  • F24C15/10 - Tops
  • H05B3/688 - Fabrication of the plates
  • Y10S252/962 - Temperature or thermal history

• US Classifications

  • 219 - Electric heating
  • 252 - Compositions
  • 392 - Electric resistance heating devices
  • 436 - Chemistry: analytical and immunological testing
  • 501 - Compositions: ceramic