3682507

Information

• Patent Grant
• 3682507

• References
• Source

• Patent Number

  3,682,507

• Date Filed

  Not available

• Date Issued

  Tuesday, August 8, 1972
  52 years ago

• CPC

  • G08B23/00 - Alarms responsive to unspecified undesired or abnormal conditions
  • F16B5/0275 - the screw-threaded element having at least two axially separated threaded portions
  • F16B25/0031 - the screw being designed to be screwed into different materials
  • F16B25/0057 - the screw having distinct axial zones
  • F16B25/0063 - with a non-threaded portion on the shaft of the screw
  • F16B25/0089 - the screw having wings
  • F16B25/103 - by means of a drilling screw-point
  • F16B25/10 - Screws performing an additional function to thread-forming

• US Classifications

  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener