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Class Information
Number: 411/403
Name: Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener > Externally threaded fastener element, e.g., bolt, screw, etc. > Head driving structure > Socket or slot
Description: Subject matter wherein the head driving structure consists of a peripherally closed cavity or a groove.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7581910 |
Fastener head |
Sep. 1, 2009 |
| 7568872 |
Lobed drive for hi-lite fastener |
Aug. 4, 2009 |
| 7484440 |
Asymmetric wrench and fastener system |
Feb. 3, 2009 |
| 7441483 |
Tamper-resistant fastener and method and tool for use with same |
Oct. 28, 2008 |
| 7441998 |
Fastening element for hard constructional components |
Oct. 28, 2008 |
| 7425112 |
Tamper resistant screw |
Sep. 16, 2008 |
| 7331744 |
Lobed drive for hi-lite fastener |
Feb. 19, 2008 |
| 7331743 |
Lobed drive for hi-lite fastener |
Feb. 19, 2008 |
| 7316535 |
Screw with a convenient screw head |
Jan. 8, 2008 |
| 7293949 |
Spiral drive fastener with friction engageable surface |
Nov. 13, 2007 |
| 7226262 |
Lobed drive for hi-lite fastener |
Jun. 5, 2007 |
| 7225710 |
Combination driver and combination fastener |
Jun. 5, 2007 |
| 7198306 |
Spring-biased locking bolt |
Apr. 3, 2007 |
| 7182003 |
Palm type spanner |
Feb. 27, 2007 |
| 7174811 |
Asymmetric wrench and fastener system |
Feb. 13, 2007 |
| 7168345 |
Palm type spanner |
Jan. 30, 2007 |
| 7162939 |
Tamperproof screw, combination with screwdriver bit, and header punch for manufacturing tamperproof screw |
Jan. 16, 2007 |
| 7150211 |
Screw and driver therefor |
Dec. 19, 2006 |
| 7128513 |
Screw and driver therefor |
Oct. 31, 2006 |
| 7097404 |
Auto-torque, tamper-proof screws |
Aug. 29, 2006 |
| 7066062 |
Torque-setting, tamper-resistant fastener and method and tool for use with same |
Jun. 27, 2006 |
| 7056075 |
Screw-type anchor |
Jun. 6, 2006 |
| 6997085 |
Threaded-fastener wrenching structure, threaded fastener and wrenching tool |
Feb. 14, 2006 |
| 6988432 |
Multi-tiered-recess screws |
Jan. 24, 2006 |
| 6935824 |
Tamper resistant screw |
Aug. 30, 2005 |
| 6908126 |
Enhanced security catch assembly for retaining a handle on a spindle |
Jun. 21, 2005 |
| 6890139 |
Fastener having recess useable with multiple drivers and method of manufacture |
May. 10, 2005 |
| 6848907 |
Screw for dental implants |
Feb. 1, 2005 |
| 6802680 |
Torque limiting fastener |
Oct. 12, 2004 |
| 6789989 |
Screw having a head with concave underside |
Sep. 14, 2004 |
| 6736580 |
Lobed drive for hi-lite fastener |
May. 18, 2004 |
| 6694700 |
Fastener attaching frame members of a patio enclosure |
Feb. 24, 2004 |
| 6685412 |
Multi-lobe torque driving recess and tool in particular for an orthopedic implant screw |
Feb. 3, 2004 |
| 6682283 |
Sidewalk bolt |
Jan. 27, 2004 |
| 6655888 |
Lobed drive for hi-lite fastener |
Dec. 2, 2003 |
| 6641586 |
Closure system for spinal fixation instrumentation |
Nov. 4, 2003 |
| 6632057 |
Fixing unit with an end imprint in a threaded terminal portion |
Oct. 14, 2003 |
| 6626067 |
Retention socket geometry variations |
Sep. 30, 2003 |
| 6481944 |
Combination sidewalk bolt |
Nov. 19, 2002 |
| 6430756 |
Closet bolt |
Aug. 13, 2002 |
| 6402449 |
Screw with an improved head |
Jun. 11, 2002 |
| 6393953 |
Combination of screw with driver bit or wrench |
May. 28, 2002 |
| 6341927 |
Tamper reistant fastener |
Jan. 29, 2002 |
| 6302630 |
Fastener with recessed head and head insert |
Oct. 16, 2001 |
| 6286382 |
Rack and pinion steering gear and method of manufacturing the gear |
Sep. 11, 2001 |
| 6276885 |
Bicycle crank arm parts/assembly and assembly tools |
Aug. 21, 2001 |
| 6220805 |
Slotted screw and method, and apparatus for forming a slot in a semi-product of a screw prior to thread formation |
Apr. 24, 2001 |
| 6186718 |
Threaded fastener having a head with a triangle centerpost within a triangle recess |
Feb. 13, 2001 |
| 6158094 |
Mechanical clamp controlling |
Dec. 12, 2000 |
| 6116834 |
Drywall screw |
Sep. 12, 2000 |
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