3507426

Information

• Patent Grant
• 3507426

• References
• Source

• Patent Number

  3,507,426

• Date Filed

  Not available

• Date Issued

  Tuesday, April 21, 1970
  55 years ago

• CPC

  • H01L21/3043 - Making grooves
  • B28D5/0047 - using fluid or gas pressure
  • Y10T225/12 - With preliminary weakening
  • Y10T225/325 - With means to apply moment of force to weakened work

• US Classifications

  • 225 - Severing by tearing or breaking
  • 257 - Active solid-state devices