Container with an opening device
Patent 4828138 Issued on May 9, 1989. Estimated Expiration Date: 
June 15, 2008. 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.
June 15, 2008. 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 3302824 3404799 3884382 Easily-openable heat-seal lid Patent #: 4501375 InventorAssigneeApplicationNo. 07/207332 filed on 06/15/1988US Classes:220/272, Rivet connection between pull tab and removable portion integral with pull tab220/270With gripping means (e.g., pull tab)ExaminersPrimary: Hall, George T.Attorney, Agent or FirmInternational ClassB65D 5/70 (20060101)Foreign Application Priority Data1987-06-17 CHAbstractA container having a top wall being made at least partly of a support material and being coated. The container has an opening device with a puncture line, along which the pouring spout can be torn open. The improved pouring spout having an improved impermeability to gases of the container, and according to the invention having at least at one location of the puncture line a grip means and a tear-off means made of plastic being attached inside and outside to the support material. The tear-off means is preferably molded into a hole in the top wall to have a cross-sectionally rivet-like shape and has a grip means.Field of SearchWith gripping means (e.g., pull tab)Provided with vent Rivet connection between pull tab and removable portion integral with pull tab Rivet connection between pull tab and removable portion integral with removable portion With closure opening arrangements for means (e.g., opening devices) | |
