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:
Jun. 24, 1980
Filed:
Sep. 14, 1977
Gaylord Brown, Beaverton, MI (US);
Sweetheart Plastic, Inc., Wilmington, MA (US);
Abstract
A tamper-proof closure for a container including an endwall and an annular, threaded sidewall. The sidewall includes an internal projection for mating with a part of the container to prevent turning of the closure when the closure is mounted on said container. A tear tab is provided on the sidewall radially outwardly of the projection. The sidewall includes tear facilitating portions on circumferentially opposite sides of the tear tab to enhance tearing of the sidewall on opposite sides of the tear tab to permit the tear tab and the projection to be swung outwardly to a removed position in which the closure can be turned. Another aspect of the invention includes a method of making the closure.