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:
May. 03, 1994
Filed:
Jun. 02, 1992
Applicant:
Inventors:
Masao Nakamura, Kobe, JP;
Ichiro Tominaga, Kobe, JP;
Assignee:
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63B / ;
U.S. Cl.
CPC ...
273 / ; 273 / ; 428280 ; 428288 ;
Abstract
A tennis ball having a felt covering which has superior abrasion resistance, felt appearance and resistance to fuzzing which may occur during the use of ball, the felt covering being made of a polyethylene terephthalate fiber including a polyethylene terephthalate (PET) polymer containing at least 90 mole % of recurring ethylene terephthalate units which satisfies the following parameters: