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:
Sep. 19, 2006
Filed:
Apr. 07, 2005
Applicant:
Chin Shun Cheng, Taichung City 408, TW;
Inventor:
Chin Shun Cheng, Taichung City 408, TW;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B 13/06 (2006.01); B25B 13/08 (2006.01); B25B 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A box wrench assembly has latch edges and accommodating grooves sequentially disposed around the internal periphery of an operating end of a box wrench, and each accommodating groove is disposed between two latch edges, and a groove is disposed proximate to the middle of a protruded surface of the latch edge to divide a cambered surface into two, so as to fit screw pieces of different shapes when the wrench is used.