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:
Sep. 12, 1989
Filed:
Jul. 16, 1987
Applicant:
Inventors:
Itsuo Tanuma, Sayama, JP;
Hideo Takeichi, Tanashi, JP;
Masashi Segawa, Kodaira, JP;
Toshio Honda, Akigawa, JP;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428409 ; 428410 ; 428437 ; 428902 ;
Abstract
A sandwich structure having an improved impact resistance comprises two outer plates and an intermediate layer interposed therebetween. The intermediate layer is comprised of plural films having a bonding force therebetween lower than that between intermediate layer and outer plate.