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:
Mar. 20, 1990
Filed:
Jul. 28, 1989
Applicant:
Inventor:
Mamoru Takasaki, Tokyo, JP;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02B / ;
U.S. Cl.
CPC ...
405115 ; 405107 ; 428902 ;
Abstract
A damage-protecting flexible rubber sheet dam uses a wear-resistant, cut-resistant member having a corrosion resistance embedded in at least a part of an outer surface portion of a rubber dam body. The member mitigates and prevents damage of the outer surface portion due to wear and other various external injuries to prolong the durable life thereof.