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. 26, 2000
Filed:
Mar. 12, 1999
Applicant:
Inventors:
Assignee:
MAX Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
81460 ; 81436 ;
Abstract
A screwdriver used for a screw tightener includes at its tip portion a blade having a plurality of flat plate portions to be meshed in a recess formed in a head of a screw. In this screwdriver, each of the flat plate portions has at its tip portion an outer peripheral surface which extends in such a manner as to be converged in the direction toward the tip portion of the screwdriver. The outer peripheral surface of the flat plate portion is formed into an angled shape having a ridge line portion extending in the direction toward the tip portion of the screwdriver.
Kaneko, Yoshihiro. (2000). Screwdriver used for screw tightener and screw suitably tightened by the (U.S. Patent No. 6164171). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6164171
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile