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US Patent 4126263 - Packing container provided with opening arrangement
US Patent Issued on November 21, 1978
Estimated Patent Expiration Date:
June 21, 1997Estimated 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.
Estimated Patent Expiration Date:
June 21, 1997Estimated 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.AbstractAn opening arrangement for packing containers made from laminated layers of plastic and paper in which a rectangular part of the top wall and an adjacent side wall is completely removable. A rectangular cover strip is sealed along its border portions to the inside of the top wall and adjacent side wall outside of the border portions of the removable rectangular part, and is also sealed to the removable rectangular part within its border portions at two spaced apart areas, which, when removed with the rectangular part, establish a pour opening having one edge coincident with an edge line formed between the top and side walls, and a vent opening. The cover strip is also provided with a folded portion projecting outwardly from this edge which forms a ledge over which the liquid goods within the container can flow so as to form a uniform and well defined jet. | InventorAssigneeApplicationNo. 05/808689 filed on 06/21/1977US Classes:229/229, Reusable hinged closure provides an access opening which is coextensive with only a portion of the top wall229/120, With venting or ventilation means229/140One extension extends along an adjacent box wallExaminersPrimary: Moorhead, Davis T.Attorney, Agent or FirmUS Patent References3185377, 3347444, 3613986, 3650458, 3658238, 3768719, 3795359International ClassesB65D 5/02 (20060101)B65D 5/06 (20060101) B65D 5/70 (20060101) Foreign Application Priority Data1976-07-08 SE |
