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Class Information
Number: 411/412
Name: Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener > Externally threaded fastener element, e.g., bolt, screw, etc. > Thread or shank structure > Plural threads on single shank
Description: Subject matter wherein the helical ridge comprises plural distinct helical ridge means concentrically arranged on the shank of the fastening means with each of the helical ridge means lying between the adjacent convolutions of one or more of other of said helical ridge means.










Sub-classes under this class:

Class Number Class Name Patents
411/413 Of different pitch 85


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8668726 Bone screw, in particular for osteosynthesis Mar. 11, 2014
8632288 Anti cross-thread bolt Jan. 21, 2014
8632289 Tapping screw Jan. 21, 2014
8608252 Spoke of a bicycle wheel Dec. 17, 2013
8460349 Bone screw Jun. 11, 2013
8430619 Concrete and masonry screw anchor Apr. 30, 2013
8419332 Non-dimpling fastener Apr. 16, 2013
8419331 System comprising a composite anchor bolt and glue Apr. 16, 2013
8408855 Screw Apr. 2, 2013
8382811 Triple lead bone screw Feb. 26, 2013
8348573 Versatile fastener Jan. 8, 2013
8348572 Hole-forming and thread-forming screw Jan. 8, 2013
8303634 Bone screw, in particular for osteosynthesis Nov. 6, 2012
8273113 Bone screw Sep. 25, 2012
8197170 Anti-cross threading screw Jun. 12, 2012
8147531 Compression pin with opposed threaded regions Apr. 3, 2012
7950888 Self-penetrating screw May. 31, 2011
7938606 Expanding screw May. 10, 2011
RE42207 Masonry anchor device Mar. 8, 2011
7883307 Self-drilling fastener Feb. 8, 2011
7866930 Bolt Jan. 11, 2011
7862279 Screw Jan. 4, 2011
7682119 Screw for fastening wooden materials Mar. 23, 2010
7458759 Threaded fastener with dual reinforcing leads for facilitating manufacture of the fastener, thread rolling die for forming the threaded fastener, and method of manufacturing the threaded faste Dec. 2, 2008
7393170 Screw with guide wings Jul. 1, 2008
7367768 Deck screw and installation method for composite lumber May. 6, 2008
7326014 Interactive fit screw thread Feb. 5, 2008
7255523 Dual threaded screw for composite materials Aug. 14, 2007
7213999 Fastener with opposite hand threads for securing two components together May. 8, 2007
7189045 Deck screws suitable for use with composite lumber Mar. 13, 2007
7156600 Die for, method of making, and fastener with lobed primary thread lead and interposed dual auxiliary thread lead with improved substrate entry end portion Jan. 2, 2007
7153075 Press fit fastener and method of producing it Dec. 26, 2006
7114902 Self-tapping bush-shaped screwed insert Oct. 3, 2006
7101134 Fastener having multiple lobed thread Sep. 5, 2006
7090453 Screw Aug. 15, 2006
7070376 Self-drilling, self-anchoring fastener for concrete Jul. 4, 2006
7055725 Quick conversion connection system for a component of a vehicle-mounted equipment carrier Jun. 6, 2006
7056075 Screw-type anchor Jun. 6, 2006
7044702 Screw with a plurality of screwing angles and mold device for forming the same May. 16, 2006
7040850 Fastener for use with frangible material May. 9, 2006
7021877 Self-tapping screw Apr. 4, 2006
6976818 Threaded fastener particularly suited for plastics Dec. 20, 2005
6945729 Structure for fastening by screw Sep. 20, 2005
6918727 Anchoring screw with double heads and triple threads of different depths of thread Jul. 19, 2005
6910841 Thread-forming screw Jun. 28, 2005
6899500 Fastner having multiple-bossed lead May. 31, 2005
6899355 Fitting for flexible tubing May. 31, 2005
6877677 Paint spraying gun Apr. 12, 2005
6860691 Self adjusting, high strength, screw system Mar. 1, 2005
6860690 Screw member with biting features Mar. 1, 2005

1 2 3 4










 
 
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