US Patent 7988396 Deck screw
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Patent abstract
A fastener for composite material having a dense composition employs a head which has a socket and a recessed underside and a lower rim. The shank has an upper portion with an enlarged diameter and a left hand thread while the lower portion has a tri-lobed configuration and is traversed by a right hand thread. The right hand thread may have a plurality of notches which, in one embodiment, are arranged in a spiral array.
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Patent Inventor Names
Joseph A. Pieciak, Jr.0
Richard Belinda0
Tad A. Weiss0
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US Patent 07988396 Deck screw US Patent 7988396 Deck screw
Infobox
Patent Number
079883960
Patent Number
79883960
Edits on 30 Mar, 2023
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Is a
Patent Jurisdiction
Patent Number
079883960
Date of Patent
August 2, 2011
0Patent Application Number
119739060
Date Filed
October 11, 2007
0Patent Primary Examiner
Edits on 8 Dec, 2021
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US Patent 07988396 Deck screw
Infobox
Is a
Patent jurisdiction
Patent number
07988396
Date of patent
August 2, 2011
Patent application number
11973906
Date Filed
October 11, 2007
Patent primary examiner
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