Tear-off container closure
Patent 4768667 Issued on September 6, 1988. Estimated Expiration Date: 
November 10, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 10, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2046173 3206055 Metal tear off cap Cap with tear-off tag Patent #: 4453644 InventorAssigneeApplicationNo. 07/119103 filed on 11/10/1987US Classes:215/255, With nonintegral actuator (e.g., attached pull ring)215/304Lever-type, pry-off meansExaminersPrimary: Norton, Donald F.Attorney, Agent or FirmInternational ClassesB65D 41/32 (20060101)B65D 41/40 (20060101) Foreign Application Priority Data1986-11-17 SEAbstractA tear-off container closure, such as a cap for sealing bottles, has an upper covering panel, a cylindrical cap skirt, a tear-off strip defined by score lines in the covering plate and cap skirt. The strip continues as (a) a tongue protruding outside the cap skirt and (b) a pulling member joined to the tongue of the tear-off strip. The pulling member includes a connecting portion, made of plastic. This connecting portion is joined to the tongue of the tear-off strip to form a joint between tongue and connecting portion which joint is resistant to tensile and torsional stress. The outwardly directed side of the joint is also provided with a protruding spacer, the upper operative surface of which is spaced from the root of the tongue by a distance substantially less than the height of the cap skirt. | |
