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. 11, 2001
Filed:
Jun. 19, 1996
Applicant:
Inventor:
Morihiro Sudo, Sumida-ku, JP;
Assignee:
Daikyo Seiko, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65D 3/900 ; B65D 3/918 ;
U.S. Cl.
CPC ...
B65D 3/900 ; B65D 3/918 ;
Abstract
A laminated rubber stopper having a new structure, capable of being produced in a simple process with a reduced production cost and being excellent in tightness, sealing property and sanitary property, is provided, comprising a top part having a flange part and a leg part provided under the top part of the rubber stopper and to be inserted into the mouth part of a vial, at least a surface thereof to be contacted with a contents in the vial being laminated with a fluoro resin film, in which the lower surface of the flange part has an annular concavity with a cross section of a circular arc from the periphery of the flange to the neck part.