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. 19, 2002
Filed:
Jul. 03, 2000
Applicant:
Inventors:
Michael D. Eggiman, Hillsboro, OR (US);
Mark A. Fritzke, Portland, OR (US);
Assignee:
Wilson Sporting Goods Co., Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 5/906 ;
U.S. Cl.
CPC ...
A63B 5/906 ;
Abstract
A bat having an elongate impact portion includes a first tubular metal member and a second tubular member substantially concentric with the first tubular member. The first and second tubular members have close fitting cylindrical surface throughout a majority of the length of the impact portion and a lubricating material is interposed between the facing cylindrical surfaces.