3530920

Information

• Patent Grant
• 3530920

• References
• Source

• Patent Number

  3,530,920

• Date Filed

  Not available

• Date Issued

  Tuesday, September 29, 1970
  54 years ago

• CPC

  • F16B39/30 - Locking exclusively by special shape of the screw-thread
  • B21H3/025 - Rolling locking screws
  • Y10S411/938 - Distorted thread

• US Classifications

  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
  • 072 - Metal deforming
  • 470 - Threaded, headed fastener, or washer making: process and apparatus