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. 03, 1991
Filed:
Dec. 21, 1989
Applicant:
Inventors:
Takuo Fukushima, Tokyo, JP;
Hiroshi Inoue, Tokyo, JP;
Yasumasa Hayashida, Tokyo, JP;
Makio Takahashi, Tokyo, JP;
Assignee:
Asahi Denka Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04C / ;
U.S. Cl.
CPC ...
405287 ; 52396 ; 404 74 ; 405267 ;
Abstract
An expansion joint for use in constructing concrete material structures of the present invention has a plurality of sandwich type composite plates each comprising a sheet-like elastic body sandwiched by a pair of hard plates with a rib at both surfaces thereof are connected with each other through a water-swelling rubber.
Fukushima, Takuo. (1991). Expansion joint for use in constructing concrete structures (U.S. Patent No. 5044835). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5044835
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile