Liquid packaging container with pouring spout and air inlet
Patent 4367828 Issued on January 11, 1983. Estimated Expiration Date: 
August 18, 2000. 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.
August 18, 2000. 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 3301458 3795359 Packing container provided with opening arrangement Patent #: 4126263 InventorAssigneeApplicationNo. 06/179331 filed on 08/18/1980US Classes:222/528, Closure type222/541.9, With integral gripping means (e.g., pull tab)229/215, Pour spout229/216Pour spout formed by tearing a sealing finExaminersPrimary: Tollberg, Stanley H.Attorney, Agent or FirmInternational ClassesB65D 5/06 (20060101)B65D 5/02 (20060101) Foreign Application Priority Data1979-09-27 DEAbstractA packaging container of cardboard for liquids, rendered impermeable by an internal coating of plastic has at least at one side, a double-thickness wall portion the interior of which communicates with the interior of the container and includes on the wall of the portion a strip of cardboard which can be gripped with the fingers. At least one of the end wall portions includes at least one score-line penetrating through only one of the double-thicknesses and along which the wall portion is severable. Closely adjacent to the score line is at least one weld-seam by means of which the wall portions are welded to each other in a fluid-tight manner. | |
