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:
Nov. 11, 2003
Filed:
Jul. 08, 2002
Applicant:
Inventor:
Tak Ko Wong, Chaiwan, HK;
Assignee:
T. K. Wong and Associates Ltd., Chaiwan, HK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 4/300 ;
U.S. Cl.
CPC ...
A63B 4/300 ;
Abstract
A recreational ball has a self-supporting flexible wall surrounding an internal space. One side of the wall has first features that extend into or at least face the internal space, and the other side of the wall has second features at the ball exterior. A hole in the flexible wall allows the first features to pass to the ball exterior as the ball is turned inside-out.