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US Patent 4343402 - Parallelepipedic packing container provided with an opening arrangement
US Patent Issued on August 10, 1982
Estimated Patent Expiration Date:
December 21, 1999Estimated 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:
December 21, 1999Estimated 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.AbstractA parallelepipedic packing container of the type which is provided with a sealing fin which extends over the upper end wall of the packing container as well as over triangular, double-walled lugs adjoining this end wall. The sealing fin comprises a narrow sealing zone on the outer edge of the fin and a tearing perforation on the base line of the fin, the tearing perforation extending from the tip of one triangular lug to a point on the end wall of the packing container. The sealing fin is unsealed in the area between the narrow sealing zone and the tearing perforation, and moreover a corresponding sealing fin arranged at the base of the packing container is appreciably narrower than the sealing fin wherein the tearing perforation is arranged. | InventorAssigneeApplicationNo. 06/105915 filed on 12/21/1979US Classes:229/216Pour spout formed by tearing a sealing finExaminersPrimary: Marcus, StephenAttorney, Agent or FirmUS Patent References2385897, 3232514, 3717244, 3797726, 4088260, Parallelepipedic packing container together with a method for its manufactureIssued on: 05/09/1978 Inventor: Stark, et al.4248351Packaging container with a pouring spout Issued on: 02/03/1981 Inventor: Berg International ClassesB65D 5/06 (20060101)B65D 5/02 (20060101) Foreign Application Priority Data1979-01-15 SE |
