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. 15, 1987
Filed:
May. 29, 1986
Applicant:
Inventor:
An Wang, Lincoln, MA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63B / ;
U.S. Cl.
CPC ...
273 / ;
Abstract
At least one mark is provided on a tennis racket. The distance between the mark and an end or edge of the racket defines a measurement length which is equal to the difference between the 36' height of the net and the length of the racket. The height of the net can be verified by the combined height of the racket and the measurement length. Three marks may be provided on the strings of the racket head to define the measurement length between each side edge of the racket head and the end of the racket head. Also, a mark may be provided on the handle of the racket.