The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 08, 2020
Filed:
Apr. 18, 2018
Applicant:
Würth International Ag, Chur, CH;
Inventors:
Rainer Eckert, Weikersheim, DE;
Andreas Wunderlich, Kupferzell, DE;
Assignee:
Würth International AG, Chur, CH;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16B 25/00 (2006.01); B21H 3/02 (2006.01);
U.S. Cl.
CPC ...
F16B 25/0078 (2013.01); F16B 25/0015 (2013.01); F16B 25/0084 (2013.01); B21H 3/02 (2013.01);
Abstract
A wood screw, having a shaft, a screw tip, and thread turns. The thread turns run circumferentially on at least a portion of the shaft, preferably through or into a screw tip. The wood screw includes at least one arc-shaped protrusion between at least two adjoining ones of the thread turns.