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. 28, 1999
Filed:
Jul. 28, 1998
Yoshihiro Kaitsuka, Hiratsuka, JP;
Japan Crown Cork Co., Ltd., Tokyo, JP;
Abstract
A plastic container closure having tamper evident properties of a type in which axial breakage means disposed in a tamper evident bottom portion is constituted from a slit continuously extending from the upper end of the tamper evident bottom portion substantially to its lower end. A first high strength bridging portion is disposed on one circumferential side of an upper end of the axial breakage means, while a second high strength bridging portion is disposed on the other circumferential side of the upper end of the axial breakage means, whereby when the container closure is mounted on a mouth-and-neck portion of a container, the tamper evident bottom portion is prevented from being enlarged at a site where its axial breakage means exists.