Snap on tamper indicating closure for containers
Patent 4667839 Issued on May 26, 1987. Estimated Expiration Date: 
September 3, 2005. 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.
September 3, 2005. 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 D221516 3504818 3812994 3893583 3907146 Plastic cap and bottle neck Container and closure assembly Screw caps Plastic cap and container construction Molded plastic container for use with a cap having inner and outer skirts Patent #: 4202455 InventorAssigneeApplicationNo. 06/771675 filed on 09/03/1985US Classes:215/256, Line of weakness extends circumferentially of receptacle mouth opening215/344Integral with closureExaminersPrimary: Norton, Donald F.Attorney, Agent or FirmInternational ClassesB65D 41/48 (20060101)B65D 41/32 (20060101) AbstractA closure for a container such as a blow molded bottle having a neck surrounding an opening therein defined by an inturned annular flange formed by a spin finish operation on the blow molded bottle, the closure having a cap portion and an annular tear skirt depending therefrom, the closure having an annular frangible wall joining the cap portion and the tear skirt and fastening configurations on the cap portion and the tear skirt, the cap portion having a resilient top portion with cross sectionally rounded annular sealing flanges depending therefrom arranged for sealing registry with the upper surface of the inturned annular flange defining the opening in the bottle. | |
