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:
Apr. 10, 1990
Filed:
Apr. 19, 1988
Yutaka Tatsumi, Yaizu, JP;
Hideo Yoshitaka, Yaizu, JP;
Tatsuya Matsunaga, Yaizu, JP;
Denpei Sudo, Sumida, JP;
Tamotsu Okuda, Noda, JP;
Daikyo Gomu Seiko, Ltd., Tokyo, JP;
Yamanouchi Pharmaceutical Co., Ltd., Tokyo, JP;
Abstract
A resin-laminated rubber closure for a medical vial is provided herein. This closure comprises an annular leg part to be inserted into the mouth of the vial, which leg part is notched or cut at least at one position and a flange part to be contacted with the front surface of the vial mouth, wherein the outer and inner surfaces of the annular leg part is provided with a chemical-resistant resin film laminated thereon except for the upper end of the leg part so that the rubber surface is exposed at the upper end of said leg portion, and wherein the leg part has at least one protrusion on the outer surface of the laminated portion. The present invention also relates to a molding process for economically producing said closure.