Patent · US Active

Racket

US11161016B2 · kind B2 · utility

1Cited by

3References

20Claims

0Family size

Assignee

SUMITOMO RUBBER INDUSTRIES, LTD. · JP

Inventors

Yosuke Yamamoto · Takarazuka, JP
Kohei MIMURA · Kobe, JP

Key dates

Filing date	Mar 4, 2020
Grant date	Nov 2, 2021
Priority date	—
Expiry date	May 30, 2040

Classification

Technology area (CPC A)Human Necessities
CPC primaryA63B2209/023
WIPO fieldFurniture, games
WIPO sectorOther fields

Abstract

A grommet of a racket includes a tubular portion. The tubular portion has a through hole through which a string is passed. The through hole has a base-side opening, a side wall, and a tip-side opening. In the tip-side opening, an inner dimension in a direction parallel to a face is larger than an inner dimension in a direction perpendicular to the face. In the tubular portion, the string is in contact with the side wall from the base-side opening to the tip-side opening.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.