3868435

Information

• Patent Grant
• 3868435

• References
• Source

• Patent Number

  3,868,435

• Date Filed

  Not available

• Date Issued

  Tuesday, February 25, 1975
  50 years ago

• CPC

  • H05B6/22 - Furnaces without an endless core
  • B22D23/06 - Melting-down metal
  • C01B33/02 - Silicon
  • C30B11/002 - Crucibles or containers for supporting the melt
  • C30B11/065 - before crystallising
  • C30B29/06 - Silicon
  • C03B2215/40 - Product characteristics

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes